1146979749 has 16 divisors (see below), whose sum is σ = 1639768320. Its totient is φ = 710561280.

The previous prime is 1146979733. The next prime is 1146979763. The reversal of 1146979749 is 9479796411.

It is not a de Polignac number, because 1146979749 - 2⁴ = 1146979733 is a prime.

It is a super-2 number, since 2×1146979749² = 2631125089232206002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146979049) 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, 138312 + ... + 146369.

It is an arithmetic number, because the mean of its divisors is an integer number (102485520).

Almost surely, 2^1146979749 is an apocalyptic number.

It is an amenable number.

1146979749 is a deficient number, since it is larger than the sum of its proper divisors (492788571).

1146979749 is a wasteful number, since it uses less digits than its factorization.

1146979749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284780.

The product of its digits is 3429216, while the sum is 57.

The square root of 1146979749 is about 33867.0894675052. The cubic root of 1146979749 is about 1046.7715648830.

The spelling of 1146979749 in words is "one billion, one hundred forty-six million, nine hundred seventy-nine thousand, seven hundred forty-nine".