145097539 has 2 divisors, whose sum is σ = 145097540. Its totient is φ = 145097538.

The previous prime is 145097531. The next prime is 145097549. The reversal of 145097539 is 935790541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145097539 - 2³ = 145097531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145097495 and 145097504.

It is not a weakly prime, because it can be changed into another prime (145097531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72548769 + 72548770.

It is an arithmetic number, because the mean of its divisors is an integer number (72548770).

Almost surely, 2^145097539 is an apocalyptic number.

145097539 is a deficient number, since it is larger than the sum of its proper divisors (1).

145097539 is an equidigital number, since it uses as much as digits as its factorization.

145097539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 145097539 is about 12045.6439844452. The cubic root of 145097539 is about 525.4765607779.

It can be divided in two parts, 1450 and 97539, that added together give a palindrome (98989).

The spelling of 145097539 in words is "one hundred forty-five million, ninety-seven thousand, five hundred thirty-nine".