45215031 has 8 divisors (see below), whose sum is σ = 62365680. Its totient is φ = 29103872.

The previous prime is 45214993. The next prime is 45215099. The reversal of 45215031 is 13051254.

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 45215031 - 2⁷ = 45214903 is a prime.

It is a super-2 number, since 2×45215031² = 4088798056661922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45214989 and 45215007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215531) 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, 259770 + ... + 259943.

It is an arithmetic number, because the mean of its divisors is an integer number (7795710).

Almost surely, 2^45215031 is an apocalyptic number.

45215031 is a deficient number, since it is larger than the sum of its proper divisors (17150649).

45215031 is a wasteful number, since it uses less digits than its factorization.

45215031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519745.

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

The square root of 45215031 is about 6724.2122958753. The cubic root of 45215031 is about 356.2549802936.

Adding to 45215031 its reverse (13051254), we get a palindrome (58266285).

The spelling of 45215031 in words is "forty-five million, two hundred fifteen thousand, thirty-one".