45051231 has 4 divisors (see below), whose sum is σ = 60068312. Its totient is φ = 30034152.

The previous prime is 45051221. The next prime is 45051263. The reversal of 45051231 is 13215054.

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

It is not a de Polignac number, because 45051231 - 2⁵ = 45051199 is a prime.

It is a super-2 number, since 2×45051231² = 4059226829230722, 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 = 45051198 and 45051207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45051221) 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, 7508536 + ... + 7508541.

It is an arithmetic number, because the mean of its divisors is an integer number (15017078).

Almost surely, 2^45051231 is an apocalyptic number.

45051231 is a deficient number, since it is larger than the sum of its proper divisors (15017081).

45051231 is a wasteful number, since it uses less digits than its factorization.

45051231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017080.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 45051231 is about 6712.0213795845. The cubic root of 45051231 is about 355.8242594067.

Adding to 45051231 its reverse (13215054), we get a palindrome (58266285).

It can be divided in two parts, 450 and 51231, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 45051231 in words is "forty-five million, fifty-one thousand, two hundred thirty-one".