101604287 has 4 divisors (see below), whose sum is σ = 101626680. Its totient is φ = 101581896.

The previous prime is 101604281. The next prime is 101604301. The reversal of 101604287 is 782406101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101604287 is a prime.

It is a super-2 number, since 2×101604287² = 20646862273556738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101604281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (25406670).

Almost surely, 2^101604287 is an apocalyptic number.

101604287 is a deficient number, since it is larger than the sum of its proper divisors (22393).

101604287 is an equidigital number, since it uses as much as digits as its factorization.

101604287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22392.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 101604287 is about 10079.8951879471. The cubic root of 101604287 is about 466.6278737028.

The spelling of 101604287 in words is "one hundred one million, six hundred four thousand, two hundred eighty-seven".