45242831 has 8 divisors (see below), whose sum is σ = 48135024. Its totient is φ = 42376320.

The previous prime is 45242809. The next prime is 45242851. The reversal of 45242831 is 13824254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45242831 - 2⁶ = 45242767 is a prime.

It is a super-2 number, since 2×45242831² = 4093827513789122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45242794 and 45242803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45242801) 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, 2720 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (6016878).

Almost surely, 2^45242831 is an apocalyptic number.

45242831 is a deficient number, since it is larger than the sum of its proper divisors (2892193).

45242831 is a wasteful number, since it uses less digits than its factorization.

45242831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12841.

The product of its digits is 7680, while the sum is 29.

The square root of 45242831 is about 6726.2791348561. The cubic root of 45242831 is about 356.3279785802.

The spelling of 45242831 in words is "forty-five million, two hundred forty-two thousand, eight hundred thirty-one".