157671361 has 2 divisors, whose sum is σ = 157671362. Its totient is φ = 157671360.

The previous prime is 157671359. The next prime is 157671377. The reversal of 157671361 is 163176751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157653136 + 18225 = 12556^2 + 135^2 .

It is an emirp because it is prime and its reverse (163176751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157671361 - 2¹ = 157671359 is a prime.

Together with 157671359, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157671361.

It is not a weakly prime, because it can be changed into another prime (157671341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78835680 + 78835681.

It is an arithmetic number, because the mean of its divisors is an integer number (78835681).

Almost surely, 2^157671361 is an apocalyptic number.

It is an amenable number.

157671361 is a deficient number, since it is larger than the sum of its proper divisors (1).

157671361 is an equidigital number, since it uses as much as digits as its factorization.

157671361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 157671361 is about 12556.7257276728. The cubic root of 157671361 is about 540.2369342060.

The spelling of 157671361 in words is "one hundred fifty-seven million, six hundred seventy-one thousand, three hundred sixty-one".