901552135997 has 4 divisors (see below), whose sum is σ = 907522680096. Its totient is φ = 895581591900.

The previous prime is 901552135987. The next prime is 901552136029. The reversal of 901552135997 is 799531255109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 901552135997 - 2¹⁸ = 901551873853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901552135987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2985271823 + ... + 2985272124.

It is an arithmetic number, because the mean of its divisors is an integer number (226880670024).

Almost surely, 2^901552135997 is an apocalyptic number.

It is an amenable number.

901552135997 is a deficient number, since it is larger than the sum of its proper divisors (5970544099).

901552135997 is a wasteful number, since it uses less digits than its factorization.

901552135997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970544098.

The product of its (nonzero) digits is 3827250, while the sum is 56.

The spelling of 901552135997 in words is "nine hundred one billion, five hundred fifty-two million, one hundred thirty-five thousand, nine hundred ninety-seven".