30772147 has 12 divisors (see below), whose sum is σ = 35912280. Its totient is φ = 26290656.

The previous prime is 30772129. The next prime is 30772151. The reversal of 30772147 is 74127703.

It is not a de Polignac number, because 30772147 - 2¹¹ = 30770099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30772187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17743 + ... + 19399.

It is an arithmetic number, because the mean of its divisors is an integer number (2992690).

Almost surely, 2^30772147 is an apocalyptic number.

30772147 is a deficient number, since it is larger than the sum of its proper divisors (5140133).

30772147 is a wasteful number, since it uses less digits than its factorization.

30772147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 30772147 is about 5547.2648215134. The cubic root of 30772147 is about 313.3665234446.

The spelling of 30772147 in words is "thirty million, seven hundred seventy-two thousand, one hundred forty-seven".