122152141 has 4 divisors (see below), whose sum is σ = 123825532. Its totient is φ = 120478752.

The previous prime is 122152117. The next prime is 122152153. The reversal of 122152141 is 141251221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141251221 = 31 ⋅4556491.

It can be written as a sum of positive squares in 2 ways, for example, as 41332041 + 80820100 = 6429^2 + 8990^2 .

It is a cyclic number.

It is not a de Polignac number, because 122152141 - 2⁵ = 122152109 is a prime.

It is a super-2 number, since 2×122152141² = 29842291101767762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152111) 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, 836586 + ... + 836731.

It is an arithmetic number, because the mean of its divisors is an integer number (30956383).

Almost surely, 2^122152141 is an apocalyptic number.

It is an amenable number.

122152141 is a deficient number, since it is larger than the sum of its proper divisors (1673391).

122152141 is an equidigital number, since it uses as much as digits as its factorization.

122152141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673390.

The product of its digits is 160, while the sum is 19.

The square root of 122152141 is about 11052.2459708423. The cubic root of 122152141 is about 496.1736474138.

The spelling of 122152141 in words is "one hundred twenty-two million, one hundred fifty-two thousand, one hundred forty-one".