1157949 has 16 divisors (see below), whose sum is σ = 1848000. Its totient is φ = 712368.

The previous prime is 1157929. The next prime is 1157953. The reversal of 1157949 is 9497511.

1157949 = 12⁵ + 13⁵ + 14⁵.

It is not a de Polignac number, because 1157949 - 2⁹ = 1157437 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

1157949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (115500).

2^1157949 is an apocalyptic number.

It is an amenable number.

1157949 is a deficient number, since it is larger than the sum of its proper divisors (690051).

1157949 is a wasteful number, since it uses less digits than its factorization.

1157949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321 (or 3315 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 1157949 is about 1076.0803873317. The cubic root of 1157949 is about 105.0097950046.

It can be divided in two parts, 11579 and 49, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 1157949 in words is "one million, one hundred fifty-seven thousand, nine hundred forty-nine".