40097513 has 4 divisors (see below), whose sum is σ = 40646868. Its totient is φ = 39548160.

The previous prime is 40097489. The next prime is 40097527. The reversal of 40097513 is 31579004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33605209 + 6492304 = 5797^2 + 2548^2 .

It is a cyclic number.

It is not a de Polignac number, because 40097513 - 2²⁰ = 39048937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40097593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274568 + ... + 274713.

It is an arithmetic number, because the mean of its divisors is an integer number (10161717).

Almost surely, 2^40097513 is an apocalyptic number.

It is an amenable number.

40097513 is a deficient number, since it is larger than the sum of its proper divisors (549355).

40097513 is an equidigital number, since it uses as much as digits as its factorization.

40097513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549354.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 40097513 is about 6332.2597072451. The cubic root of 40097513 is about 342.2728719510.

The spelling of 40097513 in words is "forty million, ninety-seven thousand, five hundred thirteen".