45211831 has 8 divisors (see below), whose sum is σ = 51814400. Its totient is φ = 38645208.

The previous prime is 45211787. The next prime is 45211867. The reversal of 45211831 is 13811254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-45211831 is a prime.

It is a super-2 number, since 2×45211831² = 4088219324745122, 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 = 45211796 and 45211805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45211871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6231 + ... + 11368.

It is an arithmetic number, because the mean of its divisors is an integer number (6476800).

Almost surely, 2^45211831 is an apocalyptic number.

45211831 is a deficient number, since it is larger than the sum of its proper divisors (6602569).

45211831 is a wasteful number, since it uses less digits than its factorization.

45211831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17973.

The product of its digits is 960, while the sum is 25.

The square root of 45211831 is about 6723.9743455787. The cubic root of 45211831 is about 356.2465756929.

The spelling of 45211831 in words is "forty-five million, two hundred eleven thousand, eight hundred thirty-one".