102155452 has 12 divisors (see below), whose sum is σ = 204310960. Its totient is φ = 43780896.

The previous prime is 102155423. The next prime is 102155461. The reversal of 102155452 is 254551201.

102155452 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1824177 + ... + 1824232.

Almost surely, 2^102155452 is an apocalyptic number.

It is an amenable number.

102155452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102155452 is a wasteful number, since it uses less digits than its factorization.

102155452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648420 (or 3648418 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 102155452 is about 10107.1980291276. The cubic root of 102155452 is about 467.4701127623.

The spelling of 102155452 in words is "one hundred two million, one hundred fifty-five thousand, four hundred fifty-two".