102053861 has 24 divisors (see below), whose sum is σ = 127157184. Its totient is φ = 80196480.

The previous prime is 102053851. The next prime is 102053863. The reversal of 102053861 is 168350201.

It is not a de Polignac number, because 102053861 - 2¹⁴ = 102037477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102053861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102053863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332270 + ... + 332576.

It is an arithmetic number, because the mean of its divisors is an integer number (5298216).

Almost surely, 2^102053861 is an apocalyptic number.

It is an amenable number.

102053861 is a deficient number, since it is larger than the sum of its proper divisors (25103323).

102053861 is a wasteful number, since it uses less digits than its factorization.

102053861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 102053861 is about 10102.1711032827. The cubic root of 102053861 is about 467.3150989842.

The spelling of 102053861 in words is "one hundred two million, fifty-three thousand, eight hundred sixty-one".