40135513 has 4 divisors (see below), whose sum is σ = 43784208. Its totient is φ = 36486820.

The previous prime is 40135493. The next prime is 40135523. The reversal of 40135513 is 31553104.

It is a happy number.

40135513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40135513 is a prime.

It is a super-2 number, since 2×40135513² = 3221718807546338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40135523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824331 + ... + 1824352.

It is an arithmetic number, because the mean of its divisors is an integer number (10946052).

Almost surely, 2^40135513 is an apocalyptic number.

It is an amenable number.

40135513 is a deficient number, since it is larger than the sum of its proper divisors (3648695).

40135513 is a wasteful number, since it uses less digits than its factorization.

40135513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648694.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 40135513 is about 6335.2595053399. The cubic root of 40135513 is about 342.3809606383.

Adding to 40135513 its reverse (31553104), we get a palindrome (71688617).

The spelling of 40135513 in words is "forty million, one hundred thirty-five thousand, five hundred thirteen".