157143761 has 2 divisors, whose sum is σ = 157143762. Its totient is φ = 157143760.

The previous prime is 157143713. The next prime is 157143769. The reversal of 157143761 is 167341751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150798400 + 6345361 = 12280^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 157143761 - 2⁶ = 157143697 is a prime.

It is not a weakly prime, because it can be changed into another prime (157143769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78571880 + 78571881.

It is an arithmetic number, because the mean of its divisors is an integer number (78571881).

Almost surely, 2^157143761 is an apocalyptic number.

It is an amenable number.

157143761 is a deficient number, since it is larger than the sum of its proper divisors (1).

157143761 is an equidigital number, since it uses as much as digits as its factorization.

157143761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 35.

The square root of 157143761 is about 12535.6994619367. The cubic root of 157143761 is about 539.6336804542.

The spelling of 157143761 in words is "one hundred fifty-seven million, one hundred forty-three thousand, seven hundred sixty-one".