158572969 has 2 divisors, whose sum is σ = 158572970. Its totient is φ = 158572968.

The previous prime is 158572963. The next prime is 158573003. The reversal of 158572969 is 969275851.

158572969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119071744 + 39501225 = 10912^2 + 6285^2 .

It is a cyclic number.

It is not a de Polignac number, because 158572969 - 2⁵ = 158572937 is a prime.

It is a super-2 number, since 2×158572969² = 50290772994949922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158572963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79286484 + 79286485.

It is an arithmetic number, because the mean of its divisors is an integer number (79286485).

Almost surely, 2^158572969 is an apocalyptic number.

It is an amenable number.

158572969 is a deficient number, since it is larger than the sum of its proper divisors (1).

158572969 is an equidigital number, since it uses as much as digits as its factorization.

158572969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 52.

The square root of 158572969 is about 12592.5759477559. The cubic root of 158572969 is about 541.2647185255.

The spelling of 158572969 in words is "one hundred fifty-eight million, five hundred seventy-two thousand, nine hundred sixty-nine".