30145527 has 10 divisors (see below), whose sum is σ = 45032328. Its totient is φ = 20096964.

The previous prime is 30145483. The next prime is 30145561. The reversal of 30145527 is 72554103.

It is a happy number.

It is not a de Polignac number, because 30145527 - 2¹⁰ = 30144503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 30145527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30145567) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 186003 + ... + 186164.

Almost surely, 2^30145527 is an apocalyptic number.

30145527 is a deficient number, since it is larger than the sum of its proper divisors (14886801).

30145527 is an equidigital number, since it uses as much as digits as its factorization.

30145527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372179 (or 372170 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 30145527 is about 5490.4942400480. The cubic root of 30145527 is about 311.2248695053.

The spelling of 30145527 in words is "thirty million, one hundred forty-five thousand, five hundred twenty-seven".