102351621 has 16 divisors (see below), whose sum is σ = 141724800. Its totient is φ = 65652480.

The previous prime is 102351581. The next prime is 102351631. The reversal of 102351621 is 126153201.

It is not a de Polignac number, because 102351621 - 2⁷ = 102351493 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102351631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3280 + ... + 14678.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2^102351621 is an apocalyptic number.

It is an amenable number.

102351621 is a deficient number, since it is larger than the sum of its proper divisors (39373179).

102351621 is a wasteful number, since it uses less digits than its factorization.

102351621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 102351621 is about 10116.8977952730. The cubic root of 102351621 is about 467.7691488756.

The spelling of 102351621 in words is "one hundred two million, three hundred fifty-one thousand, six hundred twenty-one".