145352497 has 2 divisors, whose sum is σ = 145352498. Its totient is φ = 145352496.

The previous prime is 145352453. The next prime is 145352507. The reversal of 145352497 is 794253541.

It is a happy number.

145352497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 3837681 = 11896^2 + 1959^2 .

It is an emirp because it is prime and its reverse (794253541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145352497 - 2⁷ = 145352369 is a prime.

It is a super-2 number, since 2×145352497² = 42254696768270018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145352197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72676248 + 72676249.

It is an arithmetic number, because the mean of its divisors is an integer number (72676249).

Almost surely, 2^145352497 is an apocalyptic number.

It is an amenable number.

145352497 is a deficient number, since it is larger than the sum of its proper divisors (1).

145352497 is an equidigital number, since it uses as much as digits as its factorization.

145352497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 145352497 is about 12056.2223353752. Note that the first 3 decimals coincide. The cubic root of 145352497 is about 525.7841608916.

The spelling of 145352497 in words is "one hundred forty-five million, three hundred fifty-two thousand, four hundred ninety-seven".