45007031 has 2 divisors, whose sum is σ = 45007032. Its totient is φ = 45007030.

The previous prime is 45007019. The next prime is 45007057. The reversal of 45007031 is 13070054.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45007031 - 2²² = 40812727 is a prime.

It is a super-2 number, since 2×45007031² = 4051265678869922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45006994 and 45007012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45007091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22503515 + 22503516.

It is an arithmetic number, because the mean of its divisors is an integer number (22503516).

Almost surely, 2^45007031 is an apocalyptic number.

45007031 is a deficient number, since it is larger than the sum of its proper divisors (1).

45007031 is an equidigital number, since it uses as much as digits as its factorization.

45007031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 45007031 is about 6708.7279718289. The cubic root of 45007031 is about 355.7078543116.

Adding to 45007031 its reverse (13070054), we get a palindrome (58077085).

The spelling of 45007031 in words is "forty-five million, seven thousand, thirty-one".