40135515 has 32 divisors (see below), whose sum is σ = 75188736. Its totient is φ = 17898240.

The previous prime is 40135493. The next prime is 40135523. The reversal of 40135515 is 51553104.

It is not a de Polignac number, because 40135515 - 2⁶ = 40135451 is a prime.

It is a super-2 number, since 2×40135515² = 3221719128630450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357 + ... + 8966.

It is an arithmetic number, because the mean of its divisors is an integer number (2349648).

Almost surely, 2^40135515 is an apocalyptic number.

40135515 is a deficient number, since it is larger than the sum of its proper divisors (35053221).

40135515 is a wasteful number, since it uses less digits than its factorization.

40135515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 40135515 is about 6335.2596631867. The cubic root of 40135515 is about 342.3809663254.

Adding to 40135515 its reverse (51553104), we get a palindrome (91688619).

The spelling of 40135515 in words is "forty million, one hundred thirty-five thousand, five hundred fifteen".