146611139 has 4 divisors (see below), whose sum is σ = 147730440. Its totient is φ = 145491840.

The previous prime is 146611133. The next prime is 146611141. The reversal of 146611139 is 931116641.

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 146611139 - 2²⁰ = 145562563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146611133) 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, 559454 + ... + 559715.

It is an arithmetic number, because the mean of its divisors is an integer number (36932610).

Almost surely, 2^146611139 is an apocalyptic number.

146611139 is a deficient number, since it is larger than the sum of its proper divisors (1119301).

146611139 is a wasteful number, since it uses less digits than its factorization.

146611139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119300.

The product of its digits is 3888, while the sum is 32.

The square root of 146611139 is about 12108.3086762768. The cubic root of 146611139 is about 527.2974315606.

The spelling of 146611139 in words is "one hundred forty-six million, six hundred eleven thousand, one hundred thirty-nine".