30091245 has 16 divisors (see below), whose sum is σ = 50239872. Its totient is φ = 15350720.

The previous prime is 30091223. The next prime is 30091261. The reversal of 30091245 is 54219003.

It is not a de Polignac number, because 30091245 - 2⁹ = 30090733 is a prime.

It is a congruent number.

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, 43266 + ... + 43955.

It is an arithmetic number, because the mean of its divisors is an integer number (3139992).

Almost surely, 2^30091245 is an apocalyptic number.

It is an amenable number.

30091245 is a deficient number, since it is larger than the sum of its proper divisors (20148627).

30091245 is a wasteful number, since it uses less digits than its factorization.

30091245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87252.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 30091245 is about 5485.5487419218. The cubic root of 30091245 is about 311.0379533435.

The spelling of 30091245 in words is "thirty million, ninety-one thousand, two hundred forty-five".