120278499 has 16 divisors (see below), whose sum is σ = 178675200. Its totient is φ = 71344160.

The previous prime is 120278491. The next prime is 120278503. The reversal of 120278499 is 994872021.

It is a cyclic number.

It is not a de Polignac number, because 120278499 - 2³ = 120278491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120278499.

It is not an unprimeable number, because it can be changed into a prime (120278491) 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, 37224 + ... + 40325.

It is an arithmetic number, because the mean of its divisors is an integer number (11167200).

Almost surely, 2^120278499 is an apocalyptic number.

120278499 is a deficient number, since it is larger than the sum of its proper divisors (58396701).

120278499 is a wasteful number, since it uses less digits than its factorization.

120278499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77610.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 120278499 is about 10967.1554652973. The cubic root of 120278499 is about 493.6236964979.

The spelling of 120278499 in words is "one hundred twenty million, two hundred seventy-eight thousand, four hundred ninety-nine".