102561628 has 24 divisors (see below), whose sum is σ = 194004720. Its totient is φ = 47160960.

The previous prime is 102561619. The next prime is 102561631. The reversal of 102561628 is 826165201.

It is a self number, because there is not a number n which added to its sum of digits gives 102561628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11103 + ... + 18121.

It is an arithmetic number, because the mean of its divisors is an integer number (8083530).

Almost surely, 2^102561628 is an apocalyptic number.

It is an amenable number.

102561628 is a deficient number, since it is larger than the sum of its proper divisors (91443092).

102561628 is a wasteful number, since it uses less digits than its factorization.

102561628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 102561628 is about 10127.2714982862. The cubic root of 102561628 is about 468.0888561895.

The spelling of 102561628 in words is "one hundred two million, five hundred sixty-one thousand, six hundred twenty-eight".