122407149 has 4 divisors (see below), whose sum is σ = 163209536. Its totient is φ = 81604764.

The previous prime is 122407147. The next prime is 122407151. The reversal of 122407149 is 941704221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (122407147) and next prime (122407151).

It is not a de Polignac number, because 122407149 - 2¹ = 122407147 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122407147) 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, 20401189 + ... + 20401194.

It is an arithmetic number, because the mean of its divisors is an integer number (40802384).

Almost surely, 2^122407149 is an apocalyptic number.

It is an amenable number.

122407149 is a deficient number, since it is larger than the sum of its proper divisors (40802387).

122407149 is an equidigital number, since it uses as much as digits as its factorization.

122407149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40802386.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 122407149 is about 11063.7764348345. The cubic root of 122407149 is about 496.5186824456.

The spelling of 122407149 in words is "one hundred twenty-two million, four hundred seven thousand, one hundred forty-nine".