158340913 has 2 divisors, whose sum is σ = 158340914. Its totient is φ = 158340912.

The previous prime is 158340887. The next prime is 158340929. The reversal of 158340913 is 319043851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148279329 + 10061584 = 12177^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 158340913 - 2⁵ = 158340881 is a prime.

It is not a weakly prime, because it can be changed into another prime (158340983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79170456 + 79170457.

It is an arithmetic number, because the mean of its divisors is an integer number (79170457).

Almost surely, 2^158340913 is an apocalyptic number.

It is an amenable number.

158340913 is a deficient number, since it is larger than the sum of its proper divisors (1).

158340913 is an equidigital number, since it uses as much as digits as its factorization.

158340913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 158340913 is about 12583.3585739261. The cubic root of 158340913 is about 541.0005603364. Note that the first 3 decimals are identical.

The spelling of 158340913 in words is "one hundred fifty-eight million, three hundred forty thousand, nine hundred thirteen".