47137999 has 2 divisors, whose sum is σ = 47138000. Its totient is φ = 47137998.

The previous prime is 47137973. The next prime is 47138009. The reversal of 47137999 is 99973174.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47137999 - 2⁵ = 47137967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47137939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23568999 + 23569000.

It is an arithmetic number, because the mean of its divisors is an integer number (23569000).

Almost surely, 2^47137999 is an apocalyptic number.

47137999 is a deficient number, since it is larger than the sum of its proper divisors (1).

47137999 is an equidigital number, since it uses as much as digits as its factorization.

47137999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 49.

The square root of 47137999 is about 6865.7118349083. The cubic root of 47137999 is about 361.2354645876.

The spelling of 47137999 in words is "forty-seven million, one hundred thirty-seven thousand, nine hundred ninety-nine".