1030720136 has 16 divisors (see below), whose sum is σ = 1932940800. Its totient is φ = 515269264.

The previous prime is 1030720129. The next prime is 1030720213. The reversal of 1030720136 is 6310270301.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84521 + ... + 95943.

It is an arithmetic number, because the mean of its divisors is an integer number (120808800).

Almost surely, 2^1030720136 is an apocalyptic number.

It is an amenable number.

1030720136 is a deficient number, since it is larger than the sum of its proper divisors (902220664).

1030720136 is a wasteful number, since it uses less digits than its factorization.

1030720136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22708 (or 22704 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1030720136 is about 32104.8304153752. The cubic root of 1030720136 is about 1010.1369405538.

Adding to 1030720136 its reverse (6310270301), we get a palindrome (7340990437).

The spelling of 1030720136 in words is "one billion, thirty million, seven hundred twenty thousand, one hundred thirty-six".