45197761 has 4 divisors (see below), whose sum is σ = 51654592. Its totient is φ = 38740932.

The previous prime is 45197759. The next prime is 45197771. The reversal of 45197761 is 16779154.

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 45197761 - 2¹ = 45197759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45197701) 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, 3228405 + ... + 3228418.

It is an arithmetic number, because the mean of its divisors is an integer number (12913648).

Almost surely, 2^45197761 is an apocalyptic number.

It is an amenable number.

45197761 is a deficient number, since it is larger than the sum of its proper divisors (6456831).

45197761 is an equidigital number, since it uses as much as digits as its factorization.

45197761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456830.

The product of its digits is 52920, while the sum is 40.

The square root of 45197761 is about 6722.9280079442. The cubic root of 45197761 is about 356.2096170087.

The spelling of 45197761 in words is "forty-five million, one hundred ninety-seven thousand, seven hundred sixty-one".