30777130 has 16 divisors (see below), whose sum is σ = 55971720. Its totient is φ = 12183552.

The previous prime is 30777119. The next prime is 30777139. The reversal of 30777130 is 3177703.

It can be written as a sum of positive squares in 4 ways, for example, as 29452329 + 1324801 = 5427^2 + 1151^2 .

It is not an unprimeable number, because it can be changed into a prime (30777139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14895 + ... + 16834.

Almost surely, 2^30777130 is an apocalyptic number.

30777130 is a deficient number, since it is larger than the sum of its proper divisors (25194590).

30777130 is a wasteful number, since it uses less digits than its factorization.

30777130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31833.

The product of its (nonzero) digits is 3087, while the sum is 28.

The square root of 30777130 is about 5547.7139435988. The cubic root of 30777130 is about 313.3834372369.

The spelling of 30777130 in words is "thirty million, seven hundred seventy-seven thousand, one hundred thirty".