157853947 has 2 divisors, whose sum is σ = 157853948. Its totient is φ = 157853946.

The previous prime is 157853921. The next prime is 157853987. The reversal of 157853947 is 749358751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157853947 - 2⁷ = 157853819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157853947.

It is not a weakly prime, because it can be changed into another prime (157853987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78926973 + 78926974.

It is an arithmetic number, because the mean of its divisors is an integer number (78926974).

Almost surely, 2^157853947 is an apocalyptic number.

157853947 is a deficient number, since it is larger than the sum of its proper divisors (1).

157853947 is an equidigital number, since it uses as much as digits as its factorization.

157853947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 49.

The square root of 157853947 is about 12563.9940703584. The cubic root of 157853947 is about 540.4453881473.

The spelling of 157853947 in words is "one hundred fifty-seven million, eight hundred fifty-three thousand, nine hundred forty-seven".