146213739 has 36 divisors (see below), whose sum is σ = 244944336. Its totient is φ = 82329984.

The previous prime is 146213729. The next prime is 146213773. The reversal of 146213739 is 937312641.

It is not a de Polignac number, because 146213739 - 2¹⁵ = 146180971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146213729) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 498877 + ... + 499169.

Almost surely, 2^146213739 is an apocalyptic number.

146213739 is a deficient number, since it is larger than the sum of its proper divisors (98730597).

146213739 is an equidigital number, since it uses as much as digits as its factorization.

146213739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 392 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 146213739 is about 12091.8873216715. The cubic root of 146213739 is about 526.8205746224.

The spelling of 146213739 in words is "one hundred forty-six million, two hundred thirteen thousand, seven hundred thirty-nine".