45601631 has 4 divisors (see below), whose sum is σ = 46374600. Its totient is φ = 44828664.

The previous prime is 45601627. The next prime is 45601639. The reversal of 45601631 is 13610654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13610654 = 2 ⋅6805327.

It is a cyclic number.

It is not a de Polignac number, because 45601631 - 2² = 45601627 is a prime.

It is a super-2 number, since 2×45601631² = 4159017499720322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45601631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45601639) 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, 386396 + ... + 386513.

It is an arithmetic number, because the mean of its divisors is an integer number (11593650).

Almost surely, 2^45601631 is an apocalyptic number.

45601631 is a deficient number, since it is larger than the sum of its proper divisors (772969).

45601631 is an equidigital number, since it uses as much as digits as its factorization.

45601631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772968.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 45601631 is about 6752.8979705013. The cubic root of 45601631 is about 357.2674569665.

The spelling of 45601631 in words is "forty-five million, six hundred one thousand, six hundred thirty-one".