146391374 has 4 divisors (see below), whose sum is σ = 219587064. Its totient is φ = 73195686.

The previous prime is 146391341. The next prime is 146391397. The reversal of 146391374 is 473193641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 473193641 = 31 ⋅15264311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36597842 + ... + 36597845.

It is an arithmetic number, because the mean of its divisors is an integer number (54896766).

Almost surely, 2^146391374 is an apocalyptic number.

146391374 is a deficient number, since it is larger than the sum of its proper divisors (73195690).

146391374 is an equidigital number, since it uses as much as digits as its factorization.

146391374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73195689.

The product of its digits is 54432, while the sum is 38.

The square root of 146391374 is about 12099.2303060980. The cubic root of 146391374 is about 527.0338329694.

The spelling of 146391374 in words is "one hundred forty-six million, three hundred ninety-one thousand, three hundred seventy-four".