102612921 has 8 divisors (see below), whose sum is σ = 139999200. Its totient is φ = 66817632.

The previous prime is 102612871. The next prime is 102612941. The reversal of 102612921 is 129216201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102612921 - 2⁶ = 102612857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102612891 and 102612900.

It is not an unprimeable number, because it can be changed into a prime (102612941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397596 + ... + 397853.

It is an arithmetic number, because the mean of its divisors is an integer number (17499900).

Almost surely, 2^102612921 is an apocalyptic number.

It is an amenable number.

102612921 is a deficient number, since it is larger than the sum of its proper divisors (37386279).

102612921 is an equidigital number, since it uses as much as digits as its factorization.

102612921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795495.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 102612921 is about 10129.8036012551. The cubic root of 102612921 is about 468.1668765327.

The spelling of 102612921 in words is "one hundred two million, six hundred twelve thousand, nine hundred twenty-one".