146913139 has 4 divisors (see below), whose sum is σ = 147076024. Its totient is φ = 146750256.

The previous prime is 146913119. The next prime is 146913163. The reversal of 146913139 is 931319641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146913139 - 2²⁷ = 12695411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146913098 and 146913107.

It is not an unprimeable number, because it can be changed into a prime (146913119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80082 + ... + 81895.

It is an arithmetic number, because the mean of its divisors is an integer number (36769006).

Almost surely, 2^146913139 is an apocalyptic number.

146913139 is a deficient number, since it is larger than the sum of its proper divisors (162885).

146913139 is an equidigital number, since it uses as much as digits as its factorization.

146913139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162884.

The product of its digits is 17496, while the sum is 37.

The square root of 146913139 is about 12120.7730364032. The cubic root of 146913139 is about 527.6592381050.

The spelling of 146913139 in words is "one hundred forty-six million, nine hundred thirteen thousand, one hundred thirty-nine".