45811901 has 4 divisors (see below), whose sum is σ = 45892704. Its totient is φ = 45731100.

The previous prime is 45811891. The next prime is 45811903. The reversal of 45811901 is 10911854.

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 45811901 - 2¹⁴ = 45795517 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 (45811903) 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, 39545 + ... + 40686.

It is an arithmetic number, because the mean of its divisors is an integer number (11473176).

Almost surely, 2^45811901 is an apocalyptic number.

It is an amenable number.

45811901 is a deficient number, since it is larger than the sum of its proper divisors (80803).

45811901 is an equidigital number, since it uses as much as digits as its factorization.

45811901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80802.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 45811901 is about 6768.4489360562. The cubic root of 45811901 is about 357.8157374954.

The spelling of 45811901 in words is "forty-five million, eight hundred eleven thousand, nine hundred one".