45209967 has 32 divisors (see below), whose sum is σ = 68757504. Its totient is φ = 26179200.

The previous prime is 45209959. The next prime is 45209971. The reversal of 45209967 is 76990254.

It is not a de Polignac number, because 45209967 - 2³ = 45209959 is a prime.

It is a super-2 number, since 2×45209967² = 4087882232282178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45209267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74178 + ... + 74784.

It is an arithmetic number, because the mean of its divisors is an integer number (2148672).

Almost surely, 2^45209967 is an apocalyptic number.

45209967 is a deficient number, since it is larger than the sum of its proper divisors (23547537).

45209967 is a wasteful number, since it uses less digits than its factorization.

45209967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 45209967 is about 6723.8357356497. The cubic root of 45209967 is about 356.2416798303.

It can be divided in two parts, 45 and 209967, that added together give a palindrome (210012).

The spelling of 45209967 in words is "forty-five million, two hundred nine thousand, nine hundred sixty-seven".