901010505 has 16 divisors (see below), whose sum is σ = 1488121344. Its totient is φ = 465037440.

The previous prime is 901010497. The next prime is 901010521. The reversal of 901010505 is 505010109.

It is a happy number.

It is not a de Polignac number, because 901010505 - 2³ = 901010497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968364 + ... + 969293.

It is an arithmetic number, because the mean of its divisors is an integer number (93007584).

Almost surely, 2^901010505 is an apocalyptic number.

It is an amenable number.

901010505 is a deficient number, since it is larger than the sum of its proper divisors (587110839).

901010505 is a wasteful number, since it uses less digits than its factorization.

901010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937696.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 901010505 is about 30016.8370252430. The cubic root of 901010505 is about 965.8505945823.

The spelling of 901010505 in words is "nine hundred one million, ten thousand, five hundred five".