102121836 has 48 divisors (see below), whose sum is σ = 242161920. Its totient is φ = 33492160.

The previous prime is 102121823. The next prime is 102121849. The reversal of 102121836 is 638121201.

It is an interprime number because it is at equal distance from previous prime (102121823) and next prime (102121849).

It is an unprimeable number.

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, 262330 + ... + 262718.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2^102121836 is an apocalyptic number.

It is an amenable number.

102121836 is an abundant number, since it is smaller than the sum of its proper divisors (140040084).

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

102121836 is a wasteful number, since it uses less digits than its factorization.

102121836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 102121836 is about 10105.5349190431. The cubic root of 102121836 is about 467.4188307896.

The spelling of 102121836 in words is "one hundred two million, one hundred twenty-one thousand, eight hundred thirty-six".