143420025 has 24 divisors (see below), whose sum is σ = 270996544. Its totient is φ = 65563200.

The previous prime is 143420023. The next prime is 143420027. The reversal of 143420025 is 520024341.

It is an interprime number because it is at equal distance from previous prime (143420023) and next prime (143420027).

It is not a de Polignac number, because 143420025 - 2¹ = 143420023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 143419983 and 143420010.

It is not an unprimeable number, because it can be changed into a prime (143420023) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 136066 + ... + 137115.

Almost surely, 2^143420025 is an apocalyptic number.

143420025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143420025 is a deficient number, since it is larger than the sum of its proper divisors (127576519).

143420025 is a wasteful number, since it uses less digits than its factorization.

143420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273201 (or 273196 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 143420025 is about 11975.8099934827. The cubic root of 143420025 is about 523.4436447337.

Adding to 143420025 its reverse (520024341), we get a palindrome (663444366).

The spelling of 143420025 in words is "one hundred forty-three million, four hundred twenty thousand, twenty-five".