30145247033 has 12 divisors (see below), whose sum is σ = 34277443620. Its totient is φ = 26459774880.

The previous prime is 30145247029. The next prime is 30145247047. The reversal of 30145247033 is 33074254103.

It can be written as a sum of positive squares in 2 ways, for example, as 8602933504 + 21542313529 = 92752^2 + 146773^2 .

It is not a de Polignac number, because 30145247033 - 2² = 30145247029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145247023) 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, 4291910 + ... + 4298927.

It is an arithmetic number, because the mean of its divisors is an integer number (2856453635).

Almost surely, 2^30145247033 is an apocalyptic number.

It is an amenable number.

30145247033 is a deficient number, since it is larger than the sum of its proper divisors (4132196587).

30145247033 is a wasteful number, since it uses less digits than its factorization.

30145247033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590888 (or 8590877 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 30145247033 in words is "thirty billion, one hundred forty-five million, two hundred forty-seven thousand, thirty-three".