146879999 has 24 divisors (see below), whose sum is σ = 176849568. Its totient is φ = 121551360.

The previous prime is 146879989. The next prime is 146880053. The reversal of 146879999 is 999978641.

It is a happy number.

It is not a de Polignac number, because 146879999 - 2²⁴ = 130102783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146879989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226694 + ... + 227340.

It is an arithmetic number, because the mean of its divisors is an integer number (7368732).

Almost surely, 2^146879999 is an apocalyptic number.

146879999 is a deficient number, since it is larger than the sum of its proper divisors (29969569).

146879999 is a wasteful number, since it uses less digits than its factorization.

146879999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 808 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 62.

The square root of 146879999 is about 12119.4058847783. The cubic root of 146879999 is about 527.6195594616.

The spelling of 146879999 in words is "one hundred forty-six million, eight hundred seventy-nine thousand, nine hundred ninety-nine".