45749661 has 4 divisors (see below), whose sum is σ = 60999552. Its totient is φ = 30499772.

The previous prime is 45749647. The next prime is 45749681. The reversal of 45749661 is 16694754.

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 45749661 - 2¹¹ = 45747613 is a prime.

It is a super-2 number, since 2×45749661² = 4186062963229842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45749681) 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, 7624941 + ... + 7624946.

It is an arithmetic number, because the mean of its divisors is an integer number (15249888).

Almost surely, 2^45749661 is an apocalyptic number.

It is an amenable number.

45749661 is a deficient number, since it is larger than the sum of its proper divisors (15249891).

45749661 is a wasteful number, since it uses less digits than its factorization.

45749661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15249890.

The product of its digits is 181440, while the sum is 42.

The square root of 45749661 is about 6763.8495695868. The cubic root of 45749661 is about 357.6536213628.

The spelling of 45749661 in words is "forty-five million, seven hundred forty-nine thousand, six hundred sixty-one".