145340453 has 2 divisors, whose sum is σ = 145340454. Its totient is φ = 145340452.

The previous prime is 145340399. The next prime is 145340467. The reversal of 145340453 is 354043541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121506529 + 23833924 = 11023^2 + 4882^2 .

It is an emirp because it is prime and its reverse (354043541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145340453 - 2⁶ = 145340389 is a prime.

It is a super-2 number, since 2×145340453² = 42247694556490418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145340483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72670226 + 72670227.

It is an arithmetic number, because the mean of its divisors is an integer number (72670227).

Almost surely, 2^145340453 is an apocalyptic number.

It is an amenable number.

145340453 is a deficient number, since it is larger than the sum of its proper divisors (1).

145340453 is an equidigital number, since it uses as much as digits as its factorization.

145340453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 145340453 is about 12055.7228319168. The cubic root of 145340453 is about 525.7696382209.

Adding to 145340453 its reverse (354043541), we get a palindrome (499383994).

The spelling of 145340453 in words is "one hundred forty-five million, three hundred forty thousand, four hundred fifty-three".