102587942 has 4 divisors (see below), whose sum is σ = 153881916. Its totient is φ = 51293970.

The previous prime is 102587893. The next prime is 102587951. The reversal of 102587942 is 249785201.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 102587896 and 102587905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25646984 + ... + 25646987.

It is an arithmetic number, because the mean of its divisors is an integer number (38470479).

Almost surely, 2^102587942 is an apocalyptic number.

102587942 is a deficient number, since it is larger than the sum of its proper divisors (51293974).

102587942 is an equidigital number, since it uses as much as digits as its factorization.

102587942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51293973.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 102587942 is about 10128.5705802941. The cubic root of 102587942 is about 468.1288849252.

The spelling of 102587942 in words is "one hundred two million, five hundred eighty-seven thousand, nine hundred forty-two".