145258697 has 2 divisors, whose sum is σ = 145258698. Its totient is φ = 145258696.

The previous prime is 145258627. The next prime is 145258721. The reversal of 145258697 is 796852541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136796416 + 8462281 = 11696^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 145258697 - 2¹⁶ = 145193161 is a prime.

It is a super-2 number, since 2×145258697² = 42200178108275618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145258627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72629348 + 72629349.

It is an arithmetic number, because the mean of its divisors is an integer number (72629349).

Almost surely, 2^145258697 is an apocalyptic number.

It is an amenable number.

145258697 is a deficient number, since it is larger than the sum of its proper divisors (1).

145258697 is an equidigital number, since it uses as much as digits as its factorization.

145258697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 145258697 is about 12052.3316001511. The cubic root of 145258697 is about 525.6710355171.

The spelling of 145258697 in words is "one hundred forty-five million, two hundred fifty-eight thousand, six hundred ninety-seven".