30145207 has 2 divisors, whose sum is σ = 30145208. Its totient is φ = 30145206.

The previous prime is 30145169. The next prime is 30145231. The reversal of 30145207 is 70254103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30145207 - 2²³ = 21756599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30145807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15072603 + 15072604.

It is an arithmetic number, because the mean of its divisors is an integer number (15072604).

Almost surely, 2^30145207 is an apocalyptic number.

30145207 is a deficient number, since it is larger than the sum of its proper divisors (1).

30145207 is an equidigital number, since it uses as much as digits as its factorization.

30145207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30145207 is about 5490.4650986961. The cubic root of 30145207 is about 311.2237682661.

The spelling of 30145207 in words is "thirty million, one hundred forty-five thousand, two hundred seven".