30542207 has 2 divisors, whose sum is σ = 30542208. Its totient is φ = 30542206.

The previous prime is 30542203. The next prime is 30542243. The reversal of 30542207 is 70224503.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30542207 - 2² = 30542203 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30542203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15271103 + 15271104.

It is an arithmetic number, because the mean of its divisors is an integer number (15271104).

Almost surely, 2^30542207 is an apocalyptic number.

30542207 is a deficient number, since it is larger than the sum of its proper divisors (1).

30542207 is an equidigital number, since it uses as much as digits as its factorization.

30542207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30542207 is about 5526.5004297476. The cubic root of 30542207 is about 312.5840439551.

The spelling of 30542207 in words is "thirty million, five hundred forty-two thousand, two hundred seven".