120983615 has 4 divisors (see below), whose sum is σ = 145180344. Its totient is φ = 96786888.

The previous prime is 120983591. The next prime is 120983617. The reversal of 120983615 is 516389021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 516389021 = 43 ⋅12009047.

It is a cyclic number.

It is not a de Polignac number, because 120983615 - 2²² = 116789311 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 (120983617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12098357 + ... + 12098366.

It is an arithmetic number, because the mean of its divisors is an integer number (36295086).

Almost surely, 2^120983615 is an apocalyptic number.

120983615 is a deficient number, since it is larger than the sum of its proper divisors (24196729).

120983615 is an equidigital number, since it uses as much as digits as its factorization.

120983615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24196728.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 120983615 is about 10999.2552020580. The cubic root of 120983615 is about 494.5864177956.

The spelling of 120983615 in words is "one hundred twenty million, nine hundred eighty-three thousand, six hundred fifteen".