45951817 has 4 divisors (see below), whose sum is σ = 47193796. Its totient is φ = 44709840.

The previous prime is 45951809. The next prime is 45951877. The reversal of 45951817 is 71815954.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31236921 + 14714896 = 5589^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 45951817 - 2³ = 45951809 is a prime.

It is a super-2 number, since 2×45951817² = 4223138971202978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45951817.

It is not an unprimeable number, because it can be changed into a prime (45951877) 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, 620934 + ... + 621007.

It is an arithmetic number, because the mean of its divisors is an integer number (11798449).

Almost surely, 2^45951817 is an apocalyptic number.

It is an amenable number.

45951817 is a deficient number, since it is larger than the sum of its proper divisors (1241979).

45951817 is a wasteful number, since it uses less digits than its factorization.

45951817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241978.

The product of its digits is 50400, while the sum is 40.

The square root of 45951817 is about 6778.7769545841. The cubic root of 45951817 is about 358.1796405009.

The spelling of 45951817 in words is "forty-five million, nine hundred fifty-one thousand, eight hundred seventeen".