157140727 has 2 divisors, whose sum is σ = 157140728. Its totient is φ = 157140726.

The previous prime is 157140703. The next prime is 157140733. The reversal of 157140727 is 727041751.

It is a strong prime.

It is an emirp because it is prime and its reverse (727041751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157140727 - 2¹¹ = 157138679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157140692 and 157140701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157140227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78570363 + 78570364.

It is an arithmetic number, because the mean of its divisors is an integer number (78570364).

Almost surely, 2^157140727 is an apocalyptic number.

157140727 is a deficient number, since it is larger than the sum of its proper divisors (1).

157140727 is an equidigital number, since it uses as much as digits as its factorization.

157140727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 157140727 is about 12535.5784469645. The cubic root of 157140727 is about 539.6302075003.

The spelling of 157140727 in words is "one hundred fifty-seven million, one hundred forty thousand, seven hundred twenty-seven".