901745091 has 12 divisors (see below), whose sum is σ = 1402714768. Its totient is φ = 554919984.

The previous prime is 901745041. The next prime is 901745099. The reversal of 901745091 is 190547109.

It is not a de Polignac number, because 901745091 - 2¹⁵ = 901712323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (901745099) 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, 3853495 + ... + 3853728.

Almost surely, 2^901745091 is an apocalyptic number.

901745091 is a deficient number, since it is larger than the sum of its proper divisors (500969677).

901745091 is a wasteful number, since it uses less digits than its factorization.

901745091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707242 (or 7707239 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 901745091 is about 30029.0707648439. The cubic root of 901745091 is about 966.1130064676.

The spelling of 901745091 in words is "nine hundred one million, seven hundred forty-five thousand, ninety-one".