146806739 has 4 divisors (see below), whose sum is σ = 146968800. Its totient is φ = 146644680.

The previous prime is 146806733. The next prime is 146806741. The reversal of 146806739 is 937608641.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146806739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146806739.

It is not an unprimeable number, because it can be changed into a prime (146806733) 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, 79664 + ... + 81485.

It is an arithmetic number, because the mean of its divisors is an integer number (36742200).

Almost surely, 2^146806739 is an apocalyptic number.

146806739 is a deficient number, since it is larger than the sum of its proper divisors (162061).

146806739 is an equidigital number, since it uses as much as digits as its factorization.

146806739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162060.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 146806739 is about 12116.3830824219. The cubic root of 146806739 is about 527.5318238102.

The spelling of 146806739 in words is "one hundred forty-six million, eight hundred six thousand, seven hundred thirty-nine".