1046981749 has 8 divisors (see below), whose sum is σ = 1142542080. Its totient is φ = 951484800.

The previous prime is 1046981743. The next prime is 1046981753. The reversal of 1046981749 is 9471896401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1046981749 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 (1046981743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22812 + ... + 51130.

It is an arithmetic number, because the mean of its divisors is an integer number (142817760).

Almost surely, 2^1046981749 is an apocalyptic number.

It is an amenable number.

1046981749 is a deficient number, since it is larger than the sum of its proper divisors (95560331).

1046981749 is a wasteful number, since it uses less digits than its factorization.

1046981749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31691.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1046981749 is about 32357.0973512767. The cubic root of 1046981749 is about 1015.4215366706.

The spelling of 1046981749 in words is "one billion, forty-six million, nine hundred eighty-one thousand, seven hundred forty-nine".