228150397 has 2 divisors, whose sum is σ = 228150398. Its totient is φ = 228150396.

The previous prime is 228150383. The next prime is 228150437. The reversal of 228150397 is 793051822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186431716 + 41718681 = 13654^2 + 6459^2 .

It is a cyclic number.

It is not a de Polignac number, because 228150397 - 2⁷ = 228150269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228150697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114075198 + 114075199.

It is an arithmetic number, because the mean of its divisors is an integer number (114075199).

Almost surely, 2^228150397 is an apocalyptic number.

It is an amenable number.

228150397 is a deficient number, since it is larger than the sum of its proper divisors (1).

228150397 is an equidigital number, since it uses as much as digits as its factorization.

228150397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 228150397 is about 15104.6481918646. The cubic root of 228150397 is about 611.0457712976.

The spelling of 228150397 in words is "two hundred twenty-eight million, one hundred fifty thousand, three hundred ninety-seven".