121790037 has 16 divisors (see below), whose sum is σ = 169706880. Its totient is φ = 77544192.

The previous prime is 121790021. The next prime is 121790059. The reversal of 121790037 is 730097121.

It is not a de Polignac number, because 121790037 - 2⁴ = 121790021 is a prime.

It is a super-2 number, since 2×121790037² = 29665626224922738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121789986 and 121790013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121790017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74889 + ... + 76497.

It is an arithmetic number, because the mean of its divisors is an integer number (10606680).

Almost surely, 2^121790037 is an apocalyptic number.

It is an amenable number.

121790037 is a deficient number, since it is larger than the sum of its proper divisors (47916843).

121790037 is a wasteful number, since it uses less digits than its factorization.

121790037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 121790037 is about 11035.8523458771. The cubic root of 121790037 is about 495.6828815911.

The spelling of 121790037 in words is "one hundred twenty-one million, seven hundred ninety thousand, thirty-seven".