1139425 has 24 divisors (see below), whose sum is σ = 1714176. Its totient is φ = 733440.

The previous prime is 1139423. The next prime is 1139461. The reversal of 1139425 is 5249311.

1139425 = T₁₈₈ + T₁₈₉ + ... + T₂₃₇.

It is not a de Polignac number, because 1139425 - 2¹ = 1139423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 1139425.

It is not an unprimeable number, because it can be changed into a prime (1139423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2784 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

2^1139425 is an apocalyptic number.

It is an amenable number.

1139425 is a deficient number, since it is larger than the sum of its proper divisors (574751).

1139425 is a wasteful number, since it uses less digits than its factorization.

1139425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 412 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 1139425 is about 1067.4385228199. The cubic root of 1139425 is about 104.4468262706.

The spelling of 1139425 in words is "one million, one hundred thirty-nine thousand, four hundred twenty-five".