101256404 has 6 divisors (see below), whose sum is σ = 177198714. Its totient is φ = 50628200.

The previous prime is 101256367. The next prime is 101256409. The reversal of 101256404 is 404652101.

It can be written as a sum of positive squares in only one way, i.e., 93122500 + 8133904 = 9650^2 + 2852^2 .

It is a super-2 number, since 2×101256404² = 20505718702022432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101256404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101256409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12657047 + ... + 12657054.

It is an arithmetic number, because the mean of its divisors is an integer number (29533119).

Almost surely, 2^101256404 is an apocalyptic number.

It is an amenable number.

101256404 is a deficient number, since it is larger than the sum of its proper divisors (75942310).

101256404 is a wasteful number, since it uses less digits than its factorization.

101256404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25314105 (or 25314103 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 101256404 is about 10062.6241110358. The cubic root of 101256404 is about 466.0947022128.

The spelling of 101256404 in words is "one hundred one million, two hundred fifty-six thousand, four hundred four".