45349631 has 4 divisors (see below), whose sum is σ = 45494832. Its totient is φ = 45204432.

The previous prime is 45349589. The next prime is 45349651. The reversal of 45349631 is 13694354.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45349631 - 2¹⁴ = 45333247 is a prime.

It is a super-2 number, since 2×45349631² = 4113178063672322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45349591 and 45349600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45349651) 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, 72131 + ... + 72756.

It is an arithmetic number, because the mean of its divisors is an integer number (11373708).

Almost surely, 2^45349631 is an apocalyptic number.

45349631 is a deficient number, since it is larger than the sum of its proper divisors (145201).

45349631 is a wasteful number, since it uses less digits than its factorization.

45349631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145200.

The product of its digits is 38880, while the sum is 35.

The square root of 45349631 is about 6734.2134655801. The cubic root of 45349631 is about 356.6081402594.

The spelling of 45349631 in words is "forty-five million, three hundred forty-nine thousand, six hundred thirty-one".