1149657 has 4 divisors (see below), whose sum is σ = 1532880. Its totient is φ = 766436.

The previous prime is 1149641. The next prime is 1149661. The reversal of 1149657 is 7569411.

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 a cyclic number.

It is not a de Polignac number, because 1149657 - 2⁴ = 1149641 is a prime.

It is a super-2 number, since 2×1149657² = 2643422435298, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1149607) 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, 191607 + ... + 191612.

It is an arithmetic number, because the mean of its divisors is an integer number (383220).

2^1149657 is an apocalyptic number.

It is an amenable number.

1149657 is a deficient number, since it is larger than the sum of its proper divisors (383223).

1149657 is an equidigital number, since it uses as much as digits as its factorization.

1149657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383222.

The product of its digits is 7560, while the sum is 33.

The square root of 1149657 is about 1072.2205929752. The cubic root of 1149657 is about 104.7585381215.

The spelling of 1149657 in words is "one million, one hundred forty-nine thousand, six hundred fifty-seven".