145597157 has 2 divisors, whose sum is σ = 145597158. Its totient is φ = 145597156.

The previous prime is 145597141. The next prime is 145597181. The reversal of 145597157 is 751795541.

145597157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81613156 + 63984001 = 9034^2 + 7999^2 .

It is a cyclic number.

It is not a de Polignac number, because 145597157 - 2⁴ = 145597141 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 (145597187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72798578 + 72798579.

It is an arithmetic number, because the mean of its divisors is an integer number (72798579).

Almost surely, 2^145597157 is an apocalyptic number.

It is an amenable number.

145597157 is a deficient number, since it is larger than the sum of its proper divisors (1).

145597157 is an equidigital number, since it uses as much as digits as its factorization.

145597157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220500, while the sum is 44.

The square root of 145597157 is about 12066.3646969582. The cubic root of 145597157 is about 526.0789987224.

The spelling of 145597157 in words is "one hundred forty-five million, five hundred ninety-seven thousand, one hundred fifty-seven".