158122051 has 4 divisors (see below), whose sum is σ = 161799352. Its totient is φ = 154444752.

The previous prime is 158122039. The next prime is 158122057. The reversal of 158122051 is 150221851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158122051 - 2¹¹ = 158120003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158122057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838586 + ... + 1838671.

It is an arithmetic number, because the mean of its divisors is an integer number (40449838).

Almost surely, 2^158122051 is an apocalyptic number.

158122051 is a deficient number, since it is larger than the sum of its proper divisors (3677301).

158122051 is an equidigital number, since it uses as much as digits as its factorization.

158122051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677300.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 158122051 is about 12574.6590808658. The cubic root of 158122051 is about 540.7511847792.

It can be divided in two parts, 1581 and 22051, that added together give a palindrome (23632).

The spelling of 158122051 in words is "one hundred fifty-eight million, one hundred twenty-two thousand, fifty-one".