30136730 has 16 divisors (see below), whose sum is σ = 58419144. Its totient is φ = 11127360.

The previous prime is 30136723. The next prime is 30136741. The reversal of 30136730 is 3763103.

It can be written as a sum of positive squares in 4 ways, for example, as 9443329 + 20693401 = 3073^2 + 4549^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30136696 and 30136705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115781 + ... + 116040.

Almost surely, 2^30136730 is an apocalyptic number.

30136730 is a deficient number, since it is larger than the sum of its proper divisors (28282414).

30136730 is a wasteful number, since it uses less digits than its factorization.

30136730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231841.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 30136730 is about 5489.6930697444. The cubic root of 30136730 is about 311.1945929125.

Adding to 30136730 its reverse (3763103), we get a palindrome (33899833).

The spelling of 30136730 in words is "thirty million, one hundred thirty-six thousand, seven hundred thirty".