1612139 has 8 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 1488256.

The previous prime is 1612133. The next prime is 1612141. The reversal of 1612139 is 9312161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1612139 - 2⁴ = 1612123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (217620).

2^1612139 is an apocalyptic number.

1612139 is a deficient number, since it is larger than the sum of its proper divisors (128821).

1612139 is a wasteful number, since it uses less digits than its factorization.

1612139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469.

The product of its digits is 324, while the sum is 23.

The square root of 1612139 is about 1269.7003583523. The cubic root of 1612139 is about 117.2557533892.

The spelling of 1612139 in words is "one million, six hundred twelve thousand, one hundred thirty-nine".