122990383 has 4 divisors (see below), whose sum is σ = 123037600. Its totient is φ = 122943168.

The previous prime is 122990381. The next prime is 122990429. The reversal of 122990383 is 383099221.

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

It is a cyclic number.

It is not a de Polignac number, because 122990383 - 2¹ = 122990381 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 (122990381) 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 3 ways as a sum of consecutive naturals, for example, 19458 + ... + 24991.

It is an arithmetic number, because the mean of its divisors is an integer number (30759400).

Almost surely, 2^122990383 is an apocalyptic number.

122990383 is a deficient number, since it is larger than the sum of its proper divisors (47217).

122990383 is an equidigital number, since it uses as much as digits as its factorization.

122990383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47216.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 122990383 is about 11090.1029300904. The cubic root of 122990383 is about 497.3060216973.

The spelling of 122990383 in words is "one hundred twenty-two million, nine hundred ninety thousand, three hundred eighty-three".