145370227 has 2 divisors, whose sum is σ = 145370228. Its totient is φ = 145370226.

The previous prime is 145370161. The next prime is 145370237. The reversal of 145370227 is 722073541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145370227 - 2¹⁵ = 145337459 is a prime.

It is a super-2 number, since 2×145370227² = 42265005796063058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145370237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72685113 + 72685114.

It is an arithmetic number, because the mean of its divisors is an integer number (72685114).

Almost surely, 2^145370227 is an apocalyptic number.

145370227 is a deficient number, since it is larger than the sum of its proper divisors (1).

145370227 is an equidigital number, since it uses as much as digits as its factorization.

145370227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 145370227 is about 12056.9576179068. The cubic root of 145370227 is about 525.8055382887.

The spelling of 145370227 in words is "one hundred forty-five million, three hundred seventy thousand, two hundred twenty-seven".