120249899 has 16 divisors (see below), whose sum is σ = 154761216. Its totient is φ = 90676800.

The previous prime is 120249881. The next prime is 120249901. The reversal of 120249899 is 998942021.

It is a cyclic number.

It is not a de Polignac number, because 120249899 - 2⁸ = 120249643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120249839) 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, 22802 + ... + 27575.

It is an arithmetic number, because the mean of its divisors is an integer number (9672576).

Almost surely, 2^120249899 is an apocalyptic number.

120249899 is a deficient number, since it is larger than the sum of its proper divisors (34511317).

120249899 is a wasteful number, since it uses less digits than its factorization.

120249899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50426.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 120249899 is about 10965.8514945261. The cubic root of 120249899 is about 493.5845685380.

The spelling of 120249899 in words is "one hundred twenty million, two hundred forty-nine thousand, eight hundred ninety-nine".