40947513 has 8 divisors (see below), whose sum is σ = 54677376. Its totient is φ = 27258000.

The previous prime is 40947499. The next prime is 40947541. The reversal of 40947513 is 31574904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40947513 - 2¹³ = 40939321 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40947563) 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, 7633 + ... + 11838.

It is an arithmetic number, because the mean of its divisors is an integer number (6834672).

Almost surely, 2^40947513 is an apocalyptic number.

It is an amenable number.

40947513 is a deficient number, since it is larger than the sum of its proper divisors (13729863).

40947513 is a wasteful number, since it uses less digits than its factorization.

40947513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 40947513 is about 6399.0243787628. The cubic root of 40947513 is about 344.6745176444.

The spelling of 40947513 in words is "forty million, nine hundred forty-seven thousand, five hundred thirteen".