45015431 has 2 divisors, whose sum is σ = 45015432. Its totient is φ = 45015430.

The previous prime is 45015413. The next prime is 45015461. The reversal of 45015431 is 13451054.

Together with previous prime (45015413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45015431 - 2¹⁴ = 44999047 is a prime.

It is a super-2 number, since 2×45015431² = 4052778056231522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45015397 and 45015406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45015461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22507715 + 22507716.

It is an arithmetic number, because the mean of its divisors is an integer number (22507716).

Almost surely, 2^45015431 is an apocalyptic number.

45015431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45015431 is an equidigital number, since it uses as much as digits as its factorization.

45015431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 45015431 is about 6709.3539927477. The cubic root of 45015431 is about 355.7299824105.

Adding to 45015431 its reverse (13451054), we get a palindrome (58466485).

The spelling of 45015431 in words is "forty-five million, fifteen thousand, four hundred thirty-one".