122152839 has 8 divisors (see below), whose sum is σ = 169951872. Its totient is φ = 77894520.

The previous prime is 122152831. The next prime is 122152847. The reversal of 122152839 is 938251221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122152831) and next prime (122152847).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122152839 - 2³ = 122152831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885097 + ... + 885234.

It is an arithmetic number, because the mean of its divisors is an integer number (21243984).

Almost surely, 2^122152839 is an apocalyptic number.

122152839 is a deficient number, since it is larger than the sum of its proper divisors (47799033).

122152839 is a wasteful number, since it uses less digits than its factorization.

122152839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770357.

The product of its digits is 8640, while the sum is 33.

The square root of 122152839 is about 11052.2775480894. The cubic root of 122152839 is about 496.1745924881.

The spelling of 122152839 in words is "one hundred twenty-two million, one hundred fifty-two thousand, eight hundred thirty-nine".