45817231 has 8 divisors (see below), whose sum is σ = 47013120. Its totient is φ = 44627352.

The previous prime is 45817199. The next prime is 45817241. The reversal of 45817231 is 13271854.

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 45817231 - 2⁵ = 45817199 is a prime.

It is a super-2 number, since 2×45817231² = 4198437313014722, 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 = 45817193 and 45817202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45817241) 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, 16746 + ... + 19288.

It is an arithmetic number, because the mean of its divisors is an integer number (5876640).

Almost surely, 2^45817231 is an apocalyptic number.

45817231 is a deficient number, since it is larger than the sum of its proper divisors (1195889).

45817231 is a wasteful number, since it uses less digits than its factorization.

45817231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its digits is 6720, while the sum is 31.

The square root of 45817231 is about 6768.8426632623. The cubic root of 45817231 is about 357.8296136854.

It can be divided in two parts, 458 and 17231, that added together give a square (17689 = 133²).

The spelling of 45817231 in words is "forty-five million, eight hundred seventeen thousand, two hundred thirty-one".