1139453 has 4 divisors (see below), whose sum is σ = 1302240. Its totient is φ = 976668.

The previous prime is 1139423. The next prime is 1139461. The reversal of 1139453 is 3549311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1139453 - 2⁸ = 1139197 is a prime.

It is a super-3 number, since 3×1139453³ = 4438237138593338031, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 81383 + ... + 81396.

It is an arithmetic number, because the mean of its divisors is an integer number (325560).

2^1139453 is an apocalyptic number.

It is an amenable number.

1139453 is a deficient number, since it is larger than the sum of its proper divisors (162787).

1139453 is an equidigital number, since it uses as much as digits as its factorization.

1139453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162786.

The product of its digits is 1620, while the sum is 26.

The square root of 1139453 is about 1067.4516382488. The cubic root of 1139453 is about 104.4476818154.

The spelling of 1139453 in words is "one million, one hundred thirty-nine thousand, four hundred fifty-three".