1146139 has 4 divisors (see below), whose sum is σ = 1149424. Its totient is φ = 1142856.

The previous prime is 1146133. The next prime is 1146143. The reversal of 1146139 is 9316411.

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 1146139 - 2¹⁷ = 1015067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146133) 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, 1047 + ... + 1840.

It is an arithmetic number, because the mean of its divisors is an integer number (287356).

2^1146139 is an apocalyptic number.

1146139 is a deficient number, since it is larger than the sum of its proper divisors (3285).

1146139 is an equidigital number, since it uses as much as digits as its factorization.

1146139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284.

The product of its digits is 648, while the sum is 25.

The square root of 1146139 is about 1070.5788154078. The cubic root of 1146139 is about 104.6515737272.

The spelling of 1146139 in words is "one million, one hundred forty-six thousand, one hundred thirty-nine".