158851513 has 2 divisors, whose sum is σ = 158851514. Its totient is φ = 158851512.

The previous prime is 158851489. The next prime is 158851591. The reversal of 158851513 is 315158851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128414224 + 30437289 = 11332^2 + 5517^2 .

It is a cyclic number.

It is not a de Polignac number, because 158851513 - 2⁵ = 158851481 is a prime.

It is not a weakly prime, because it can be changed into another prime (158857513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79425756 + 79425757.

It is an arithmetic number, because the mean of its divisors is an integer number (79425757).

Almost surely, 2^158851513 is an apocalyptic number.

It is an amenable number.

158851513 is a deficient number, since it is larger than the sum of its proper divisors (1).

158851513 is an equidigital number, since it uses as much as digits as its factorization.

158851513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 37.

The square root of 158851513 is about 12603.6309450888. The cubic root of 158851513 is about 541.5814556715.

It can be divided in two parts, 15 and 8851513, that added together give a triangular number (8851528 = T₄₂₀₇).

The spelling of 158851513 in words is "one hundred fifty-eight million, eight hundred fifty-one thousand, five hundred thirteen".