157572071 has 2 divisors, whose sum is σ = 157572072. Its totient is φ = 157572070.

The previous prime is 157572053. The next prime is 157572083. The reversal of 157572071 is 170275751.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (170275751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157572071 - 2¹⁴ = 157555687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157572001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78786035 + 78786036.

It is an arithmetic number, because the mean of its divisors is an integer number (78786036).

Almost surely, 2^157572071 is an apocalyptic number.

157572071 is a deficient number, since it is larger than the sum of its proper divisors (1).

157572071 is an equidigital number, since it uses as much as digits as its factorization.

157572071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17150, while the sum is 35.

The square root of 157572071 is about 12552.7714469754. The cubic root of 157572071 is about 540.1235097000.

The spelling of 157572071 in words is "one hundred fifty-seven million, five hundred seventy-two thousand, seventy-one".