901048581 has 12 divisors (see below), whose sum is σ = 1317196608. Its totient is φ = 593461224.

The previous prime is 901048567. The next prime is 901048583. The reversal of 901048581 is 185840109.

901048581 is a `hidden beast` number, since 90 + 10 + 485 + 81 = 666.

901048581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 901048581 - 2⁷ = 901048453 is a prime.

It is a super-2 number, since 2×901048581² = 1623777090644227122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901048583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602365 + ... + 603858.

It is an arithmetic number, because the mean of its divisors is an integer number (109766384).

Almost surely, 2^901048581 is an apocalyptic number.

It is an amenable number.

901048581 is a deficient number, since it is larger than the sum of its proper divisors (416148027).

901048581 is a wasteful number, since it uses less digits than its factorization.

901048581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206312 (or 1206309 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 901048581 is about 30017.4712625831. The cubic root of 901048581 is about 965.8641997545.

The spelling of 901048581 in words is "nine hundred one million, forty-eight thousand, five hundred eighty-one".