145412540520525 has 36 divisors (see below), whose sum is σ = 260450741821140. Its totient is φ = 77553139123200.

The previous prime is 145412540520491. The next prime is 145412540520547. The reversal of 145412540520525 is 525025045214541.

145412540520525 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 1 + 2 + 540 + 52 + 0 + 52 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 893529701289 + 144519010819236 = 945267^2 + 12021606^2 .

It is not a de Polignac number, because 145412540520525 - 2¹³ = 145412540512333 is a prime.

It is a super-2 number, since 2×145412540520525² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 111013915 + ... + 112316135.

It is an arithmetic number, because the mean of its divisors is an integer number (7234742828365).

Almost surely, 2^{145412540520525} is an apocalyptic number.

145412540520525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145412540520525 is a deficient number, since it is larger than the sum of its proper divisors (115038201300615).

145412540520525 is a wasteful number, since it uses less digits than its factorization.

145412540520525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798526 (or 1798518 counting only the distinct ones).

The product of its (nonzero) digits is 1600000, while the sum is 45.

The spelling of 145412540520525 in words is "one hundred forty-five trillion, four hundred twelve billion, five hundred forty million, five hundred twenty thousand, five hundred twenty-five".