158730109 has 2 divisors, whose sum is σ = 158730110. Its totient is φ = 158730108.

The previous prime is 158730067. The next prime is 158730133. The reversal of 158730109 is 901037851.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155500900 + 3229209 = 12470^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 158730109 - 2¹³ = 158721917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158730179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79365054 + 79365055.

It is an arithmetic number, because the mean of its divisors is an integer number (79365055).

Almost surely, 2^158730109 is an apocalyptic number.

It is an amenable number.

158730109 is a deficient number, since it is larger than the sum of its proper divisors (1).

158730109 is an equidigital number, since it uses as much as digits as its factorization.

158730109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 158730109 is about 12598.8137933696. The cubic root of 158730109 is about 541.4434506651.

The spelling of 158730109 in words is "one hundred fifty-eight million, seven hundred thirty thousand, one hundred nine".