158420051 has 8 divisors (see below), whose sum is σ = 162988080. Its totient is φ = 153867168.

The previous prime is 158420029. The next prime is 158420057. The reversal of 158420051 is 150024851.

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 158420051 - 2¹⁴ = 158403667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158420051.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19445 + ... + 26361.

It is an arithmetic number, because the mean of its divisors is an integer number (20373510).

Almost surely, 2^158420051 is an apocalyptic number.

158420051 is a deficient number, since it is larger than the sum of its proper divisors (4568029).

158420051 is an equidigital number, since it uses as much as digits as its factorization.

158420051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7573.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 158420051 is about 12586.5027311005. The cubic root of 158420051 is about 541.0906751207.

The spelling of 158420051 in words is "one hundred fifty-eight million, four hundred twenty thousand, fifty-one".