157969753 has 2 divisors, whose sum is σ = 157969754. Its totient is φ = 157969752.

The previous prime is 157969739. The next prime is 157969759. The reversal of 157969753 is 357969751.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157954624 + 15129 = 12568^2 + 123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157969753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157969753.

It is not a weakly prime, because it can be changed into another prime (157969759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78984876 + 78984877.

It is an arithmetic number, because the mean of its divisors is an integer number (78984877).

Almost surely, 2^157969753 is an apocalyptic number.

It is an amenable number.

157969753 is a deficient number, since it is larger than the sum of its proper divisors (1).

157969753 is an equidigital number, since it uses as much as digits as its factorization.

157969753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1786050, while the sum is 52.

The square root of 157969753 is about 12568.6018713300. The cubic root of 157969753 is about 540.5775177116.

The spelling of 157969753 in words is "one hundred fifty-seven million, nine hundred sixty-nine thousand, seven hundred fifty-three".