121943245 has 8 divisors (see below), whose sum is σ = 147753216. Its totient is φ = 96607056.

The previous prime is 121943219. The next prime is 121943251. The reversal of 121943245 is 542349121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121943245 - 2⁷ = 121943117 is a prime.

It is a super-2 number, since 2×121943245² = 29740310002260050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117877 + ... + 118906.

It is an arithmetic number, because the mean of its divisors is an integer number (18469152).

Almost surely, 2^121943245 is an apocalyptic number.

It is an amenable number.

121943245 is a deficient number, since it is larger than the sum of its proper divisors (25809971).

121943245 is a wasteful number, since it uses less digits than its factorization.

121943245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236891.

The product of its digits is 8640, while the sum is 31.

The square root of 121943245 is about 11042.7915401858. The cubic root of 121943245 is about 495.8906456047.

The spelling of 121943245 in words is "one hundred twenty-one million, nine hundred forty-three thousand, two hundred forty-five".