122154051 has 4 divisors (see below), whose sum is σ = 162872072. Its totient is φ = 81436032.

The previous prime is 122154049. The next prime is 122154073. The reversal of 122154051 is 150451221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150451221 = 3 ⋅50150407.

It is not a de Polignac number, because 122154051 - 2¹ = 122154049 is a prime.

It is a super-2 number, since 2×122154051² = 29843224351421202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122154001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20359006 + ... + 20359011.

It is an arithmetic number, because the mean of its divisors is an integer number (40718018).

Almost surely, 2^122154051 is an apocalyptic number.

122154051 is a deficient number, since it is larger than the sum of its proper divisors (40718021).

122154051 is an equidigital number, since it uses as much as digits as its factorization.

122154051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40718020.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 122154051 is about 11052.3323782811. The cubic root of 122154051 is about 496.1762334968.

The spelling of 122154051 in words is "one hundred twenty-two million, one hundred fifty-four thousand, fifty-one".