30525145 has 16 divisors (see below), whose sum is σ = 41955840. Its totient is φ = 20885184.

The previous prime is 30525119. The next prime is 30525179. The reversal of 30525145 is 54152503.

It is a cyclic number.

It is not a de Polignac number, because 30525145 - 2⁵ = 30525113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24559 + ... + 25771.

It is an arithmetic number, because the mean of its divisors is an integer number (2622240).

Almost surely, 2^30525145 is an apocalyptic number.

30525145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30525145 is a deficient number, since it is larger than the sum of its proper divisors (11430695).

30525145 is a wasteful number, since it uses less digits than its factorization.

30525145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30525145 is about 5524.9565609152. The cubic root of 30525145 is about 312.5258261322.

Adding to 30525145 its reverse (54152503), we get a palindrome (84677648).

The spelling of 30525145 in words is "thirty million, five hundred twenty-five thousand, one hundred forty-five".