1147949 has 8 divisors (see below), whose sum is σ = 1269120. Its totient is φ = 1029600.

The previous prime is 1147931. The next prime is 1147969. The reversal of 1147949 is 9497411.

1147949 = 98² + 99² + ... + 163².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1147949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (158640).

2^1147949 is an apocalyptic number.

It is an amenable number.

1147949 is a deficient number, since it is larger than the sum of its proper divisors (121171).

1147949 is a wasteful number, since it uses less digits than its factorization.

1147949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its digits is 9072, while the sum is 35.

The square root of 1147949 is about 1071.4238190371. The cubic root of 1147949 is about 104.7066338681.

The spelling of 1147949 in words is "one million, one hundred forty-seven thousand, nine hundred forty-nine".