122172037 has 4 divisors (see below), whose sum is σ = 131569900. Its totient is φ = 112774176.

The previous prime is 122172031. The next prime is 122172059. The reversal of 122172037 is 730271221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 730271221 = 353 ⋅2068757.

It can be written as a sum of positive squares in 2 ways, for example, as 67914081 + 54257956 = 8241^2 + 7366^2 .

It is a cyclic number.

It is not a de Polignac number, because 122172037 - 2⁷ = 122171909 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 (122172031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4698912 + ... + 4698937.

It is an arithmetic number, because the mean of its divisors is an integer number (32892475).

Almost surely, 2^122172037 is an apocalyptic number.

It is an amenable number.

122172037 is a deficient number, since it is larger than the sum of its proper divisors (9397863).

122172037 is an equidigital number, since it uses as much as digits as its factorization.

122172037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9397862.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 122172037 is about 11053.1460227394. The cubic root of 122172037 is about 496.2005846821.

The spelling of 122172037 in words is "one hundred twenty-two million, one hundred seventy-two thousand, thirty-seven".