158261039 has 8 divisors (see below), whose sum is σ = 159524640. Its totient is φ = 157002976.

The previous prime is 158261017. The next prime is 158261071. The reversal of 158261039 is 930162851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158261039 - 2⁸ = 158260783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158261009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69629 + ... + 71865.

It is an arithmetic number, because the mean of its divisors is an integer number (19940580).

Almost surely, 2^158261039 is an apocalyptic number.

158261039 is a deficient number, since it is larger than the sum of its proper divisors (1263601).

158261039 is a wasteful number, since it uses less digits than its factorization.

158261039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 158261039 is about 12580.1843786170. The cubic root of 158261039 is about 540.9095770145.

The spelling of 158261039 in words is "one hundred fifty-eight million, two hundred sixty-one thousand, thirty-nine".