101261256 has 16 divisors (see below), whose sum is σ = 253153200. Its totient is φ = 33753744.

The previous prime is 101261239. The next prime is 101261261. The reversal of 101261256 is 652162101.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 4219219 = 101261256 / (1 + 0 + 1 + 2 + 6 + 1 + 2 + 5 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2109586 + ... + 2109633.

It is an arithmetic number, because the mean of its divisors is an integer number (15822075).

Almost surely, 2^101261256 is an apocalyptic number.

It is an amenable number.

101261256 is an abundant number, since it is smaller than the sum of its proper divisors (151891944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101261256 is a wasteful number, since it uses less digits than its factorization.

101261256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219228 (or 4219224 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 101261256 is about 10062.8651983419. The cubic root of 101261256 is about 466.1021468625.

The spelling of 101261256 in words is "one hundred one million, two hundred sixty-one thousand, two hundred fifty-six".