40122513 has 8 divisors (see below), whose sum is σ = 59440800. Its totient is φ = 26748324.

The previous prime is 40122503. The next prime is 40122521. The reversal of 40122513 is 31522104.

It is not a de Polignac number, because 40122513 - 2⁴ = 40122497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40122503) 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, 742983 + ... + 743036.

It is an arithmetic number, because the mean of its divisors is an integer number (7430100).

Almost surely, 2^40122513 is an apocalyptic number.

It is an amenable number.

40122513 is a deficient number, since it is larger than the sum of its proper divisors (19318287).

40122513 is a wasteful number, since it uses less digits than its factorization.

40122513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486028 (or 1486022 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40122513 is about 6334.2334184967. The cubic root of 40122513 is about 342.3439906102.

Adding to 40122513 its reverse (31522104), we get a palindrome (71644617).

The spelling of 40122513 in words is "forty million, one hundred twenty-two thousand, five hundred thirteen".