158420087 has 12 divisors (see below), whose sum is σ = 185637600. Its totient is φ = 134791776.

The previous prime is 158420057. The next prime is 158420117. The reversal of 158420087 is 780024851.

It is an interprime number because it is at equal distance from previous prime (158420057) and next prime (158420117).

It is not a de Polignac number, because 158420087 - 2¹⁶ = 158354551 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158420057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5087 + ... + 18512.

It is an arithmetic number, because the mean of its divisors is an integer number (15469800).

Almost surely, 2^158420087 is an apocalyptic number.

158420087 is a deficient number, since it is larger than the sum of its proper divisors (27217513).

158420087 is a wasteful number, since it uses less digits than its factorization.

158420087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23750 (or 23743 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 158420087 is about 12586.5041612038. The cubic root of 158420087 is about 541.0907161072.

The spelling of 158420087 in words is "one hundred fifty-eight million, four hundred twenty thousand, eighty-seven".