121972583 has 2 divisors, whose sum is σ = 121972584. Its totient is φ = 121972582.

The previous prime is 121972537. The next prime is 121972597. The reversal of 121972583 is 385279121.

It is a strong prime.

It is an emirp because it is prime and its reverse (385279121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121972583 - 2⁸ = 121972327 is a prime.

It is a super-2 number, since 2×121972583² = 29754622007383778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121972523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60986291 + 60986292.

It is an arithmetic number, because the mean of its divisors is an integer number (60986292).

Almost surely, 2^121972583 is an apocalyptic number.

121972583 is a deficient number, since it is larger than the sum of its proper divisors (1).

121972583 is an equidigital number, since it uses as much as digits as its factorization.

121972583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 121972583 is about 11044.1198381763. The cubic root of 121972583 is about 495.9304107517.

The spelling of 121972583 in words is "one hundred twenty-one million, nine hundred seventy-two thousand, five hundred eighty-three".