1146739 has 8 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 1024800.

The previous prime is 1146731. The next prime is 1146763. The reversal of 1146739 is 9376411.

It is a happy number.

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

It is not a de Polignac number, because 1146739 - 2³ = 1146731 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 1146739.

It is not an unprimeable number, because it can be changed into a prime (1146731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2^1146739 is an apocalyptic number.

1146739 is a deficient number, since it is larger than the sum of its proper divisors (125501).

1146739 is a wasteful number, since it uses less digits than its factorization.

1146739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781.

The product of its digits is 4536, while the sum is 31.

The square root of 1146739 is about 1070.8590009894. The cubic root of 1146739 is about 104.6698321264.

The spelling of 1146739 in words is "one million, one hundred forty-six thousand, seven hundred thirty-nine".