145262539 has 2 divisors, whose sum is σ = 145262540. Its totient is φ = 145262538.

The previous prime is 145262519. The next prime is 145262561. The reversal of 145262539 is 935262541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145262539 - 2¹⁵ = 145229771 is a prime.

It is a super-2 number, since 2×145262539² = 42202410473453042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145262498 and 145262507.

It is not a weakly prime, because it can be changed into another prime (145262519) 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, 72631269 + 72631270.

It is an arithmetic number, because the mean of its divisors is an integer number (72631270).

Almost surely, 2^145262539 is an apocalyptic number.

145262539 is a deficient number, since it is larger than the sum of its proper divisors (1).

145262539 is an equidigital number, since it uses as much as digits as its factorization.

145262539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 145262539 is about 12052.4909873437. The cubic root of 145262539 is about 525.6756700309.

The spelling of 145262539 in words is "one hundred forty-five million, two hundred sixty-two thousand, five hundred thirty-nine".