101864542 has 16 divisors (see below), whose sum is σ = 164898720. Its totient is φ = 46914912.

The previous prime is 101864537. The next prime is 101864597. The reversal of 101864542 is 245468101.

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, 9184 + ... + 16972.

It is an arithmetic number, because the mean of its divisors is an integer number (10306170).

Almost surely, 2^101864542 is an apocalyptic number.

101864542 is a deficient number, since it is larger than the sum of its proper divisors (63034178).

101864542 is a wasteful number, since it uses less digits than its factorization.

101864542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8307.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 101864542 is about 10092.7965401072. The cubic root of 101864542 is about 467.0259497370.

The spelling of 101864542 in words is "one hundred one million, eight hundred sixty-four thousand, five hundred forty-two".