145390753 has 2 divisors, whose sum is σ = 145390754. Its totient is φ = 145390752.

The previous prime is 145390741. The next prime is 145390759. The reversal of 145390753 is 357093541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139783329 + 5607424 = 11823^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 145390753 - 2²⁵ = 111836321 is a prime.

It is a super-3 number, since 3×145390753³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (145390759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72695376 + 72695377.

It is an arithmetic number, because the mean of its divisors is an integer number (72695377).

Almost surely, 2^145390753 is an apocalyptic number.

It is an amenable number.

145390753 is a deficient number, since it is larger than the sum of its proper divisors (1).

145390753 is an equidigital number, since it uses as much as digits as its factorization.

145390753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 145390753 is about 12057.8087976216. The cubic root of 145390753 is about 525.8302847052.

The spelling of 145390753 in words is "one hundred forty-five million, three hundred ninety thousand, seven hundred fifty-three".