143235756225 has 81 divisors (see below), whose sum is σ = 268435225513. Its totient is φ = 73004384640.

The previous prime is 143235756187. The next prime is 143235756259. The reversal of 143235756225 is 522657532341.

The square root of 143235756225 is 378465.

It is a perfect power (a square), and thus also a powerful number.

143235756225 is a `hidden beast` number, since 1 + 4 + 32 + 3 + 57 + 562 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18233911089 + 125001845136 = 135033^2 + 353556^2 .

It is not a de Polignac number, because 143235756225 - 2¹⁵ = 143235723457 is a prime.

It is a super-2 number, since 2×143235756225² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 130569877 + ... + 130570973.

Almost surely, 2^143235756225 is an apocalyptic number.

143235756225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

143235756225 is the 378465-th square number.

143235756225 is the 189233-rd centered octagonal number.

It is an amenable number.

143235756225 is a deficient number, since it is larger than the sum of its proper divisors (125199469288).

143235756225 is an equidigital number, since it uses as much as digits as its factorization.

143235756225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 1128 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The spelling of 143235756225 in words is "one hundred forty-three billion, two hundred thirty-five million, seven hundred fifty-six thousand, two hundred twenty-five".