120142499 has 2 divisors, whose sum is σ = 120142500. Its totient is φ = 120142498.

The previous prime is 120142493. The next prime is 120142513. The reversal of 120142499 is 994241021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120142499 is a prime.

It is not a weakly prime, because it can be changed into another prime (120142493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071249 + 60071250.

It is an arithmetic number, because the mean of its divisors is an integer number (60071250).

Almost surely, 2^120142499 is an apocalyptic number.

120142499 is a deficient number, since it is larger than the sum of its proper divisors (1).

120142499 is an equidigital number, since it uses as much as digits as its factorization.

120142499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 120142499 is about 10960.9533800669. The cubic root of 120142499 is about 493.4375780540.

The spelling of 120142499 in words is "one hundred twenty million, one hundred forty-two thousand, four hundred ninety-nine".