102566942 has 4 divisors (see below), whose sum is σ = 153850416. Its totient is φ = 51283470.

The previous prime is 102566917. The next prime is 102566977. The reversal of 102566942 is 249665201.

It is a happy number.

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

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, 25641734 + ... + 25641737.

It is an arithmetic number, because the mean of its divisors is an integer number (38462604).

Almost surely, 2^102566942 is an apocalyptic number.

102566942 is a deficient number, since it is larger than the sum of its proper divisors (51283474).

102566942 is an equidigital number, since it uses as much as digits as its factorization.

102566942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51283473.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 102566942 is about 10127.5338557815. The cubic root of 102566942 is about 468.0969403735.

The spelling of 102566942 in words is "one hundred two million, five hundred sixty-six thousand, nine hundred forty-two".