122732406149 has 4 divisors (see below), whose sum is σ = 122735313036. Its totient is φ = 122729499264.

The previous prime is 122732406143. The next prime is 122732406191. The reversal of 122732406149 is 941604237221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93754153249 + 28978252900 = 306193^2 + 170230^2 .

It is a cyclic number.

It is not a de Polignac number, because 122732406149 - 2³² = 118437438853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122732406143) 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, 1389164 + ... + 1474869.

It is an arithmetic number, because the mean of its divisors is an integer number (30683828259).

Almost surely, 2^122732406149 is an apocalyptic number.

It is an amenable number.

122732406149 is a deficient number, since it is larger than the sum of its proper divisors (2906887).

122732406149 is an equidigital number, since it uses as much as digits as its factorization.

122732406149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906886.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 122732406149 in words is "one hundred twenty-two billion, seven hundred thirty-two million, four hundred six thousand, one hundred forty-nine".