1107428731 has 4 divisors (see below), whose sum is σ = 1107502200. Its totient is φ = 1107355264.

The previous prime is 1107428723. The next prime is 1107428753. The reversal of 1107428731 is 1378247011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1107428731 - 2³ = 1107428723 is a prime.

It is a super-2 number, since 2×1107428731² = 2452796788488540722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1107428701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4966 + ... + 47323.

It is an arithmetic number, because the mean of its divisors is an integer number (276875550).

Almost surely, 2^1107428731 is an apocalyptic number.

1107428731 is a deficient number, since it is larger than the sum of its proper divisors (73469).

1107428731 is an equidigital number, since it uses as much as digits as its factorization.

1107428731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73468.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1107428731 is about 33278.0517909327. The cubic root of 1107428731 is about 1034.5987011858.

The spelling of 1107428731 in words is "one billion, one hundred seven million, four hundred twenty-eight thousand, seven hundred thirty-one".