146991874 has 8 divisors (see below), whose sum is σ = 220633920. Its totient is φ = 73447236.

The previous prime is 146991857. The next prime is 146991893. The reversal of 146991874 is 478199641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×146991874² = 43213222044063752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20454 + ... + 26689.

It is an arithmetic number, because the mean of its divisors is an integer number (27579240).

Almost surely, 2^146991874 is an apocalyptic number.

146991874 is a deficient number, since it is larger than the sum of its proper divisors (73642046).

146991874 is a wasteful number, since it uses less digits than its factorization.

146991874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48704.

The product of its digits is 435456, while the sum is 49.

The square root of 146991874 is about 12124.0205377589. The cubic root of 146991874 is about 527.7534838860.

The spelling of 146991874 in words is "one hundred forty-six million, nine hundred ninety-one thousand, eight hundred seventy-four".