145157227 has 2 divisors, whose sum is σ = 145157228. Its totient is φ = 145157226.

The previous prime is 145157213. The next prime is 145157231. The reversal of 145157227 is 722751541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145157227 - 2²⁷ = 10939499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145157192 and 145157201.

It is not a weakly prime, because it can be changed into another prime (145157297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72578613 + 72578614.

It is an arithmetic number, because the mean of its divisors is an integer number (72578614).

Almost surely, 2^145157227 is an apocalyptic number.

145157227 is a deficient number, since it is larger than the sum of its proper divisors (1).

145157227 is an equidigital number, since it uses as much as digits as its factorization.

145157227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19600, while the sum is 34.

The square root of 145157227 is about 12048.1213058302. The cubic root of 145157227 is about 525.5486050625.

The spelling of 145157227 in words is "one hundred forty-five million, one hundred fifty-seven thousand, two hundred twenty-seven".