30087157 has 2 divisors, whose sum is σ = 30087158. Its totient is φ = 30087156.

The previous prime is 30087139. The next prime is 30087209. The reversal of 30087157 is 75178003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30041361 + 45796 = 5481^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 30087157 - 2¹⁵ = 30054389 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 (30087107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15043578 + 15043579.

It is an arithmetic number, because the mean of its divisors is an integer number (15043579).

Almost surely, 2^30087157 is an apocalyptic number.

It is an amenable number.

30087157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30087157 is an equidigital number, since it uses as much as digits as its factorization.

30087157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 30087157 is about 5485.1761138545. The cubic root of 30087157 is about 311.0238675107.

The spelling of 30087157 in words is "thirty million, eighty-seven thousand, one hundred fifty-seven".