47019131 has 2 divisors, whose sum is σ = 47019132. Its totient is φ = 47019130.

The previous prime is 47019073. The next prime is 47019139. The reversal of 47019131 is 13191074.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47019131 is a prime.

It is a super-2 number, since 2×47019131² = 4421597359990322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47019131.

It is not a weakly prime, because it can be changed into another prime (47019139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23509565 + 23509566.

It is an arithmetic number, because the mean of its divisors is an integer number (23509566).

Almost surely, 2^47019131 is an apocalyptic number.

47019131 is a deficient number, since it is larger than the sum of its proper divisors (1).

47019131 is an equidigital number, since it uses as much as digits as its factorization.

47019131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 47019131 is about 6857.0497300224. The cubic root of 47019131 is about 360.9315662312.

The spelling of 47019131 in words is "forty-seven million, nineteen thousand, one hundred thirty-one".