102451025 has 12 divisors (see below), whose sum is σ = 129123804. Its totient is φ = 80616000.

The previous prime is 102451007. The next prime is 102451031. The reversal of 102451025 is 520154201.

It can be written as a sum of positive squares in 6 ways, for example, as 824464 + 101626561 = 908^2 + 10081^2 .

It is not a de Polignac number, because 102451025 - 2¹⁸ = 102188881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102450988 and 102451006.

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 11 ways as a sum of consecutive naturals, for example, 32066 + ... + 35115.

It is an arithmetic number, because the mean of its divisors is an integer number (10760317).

Almost surely, 2^102451025 is an apocalyptic number.

It is an amenable number.

102451025 is a deficient number, since it is larger than the sum of its proper divisors (26672779).

102451025 is an equidigital number, since it uses as much as digits as its factorization.

102451025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67252 (or 67247 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 102451025 is about 10121.8093738224. The cubic root of 102451025 is about 467.9205325050.

The spelling of 102451025 in words is "one hundred two million, four hundred fifty-one thousand, twenty-five".