145868539 has 2 divisors, whose sum is σ = 145868540. Its totient is φ = 145868538.

The previous prime is 145868533. The next prime is 145868573. The reversal of 145868539 is 935868541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145868539 - 2³ = 145868531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145868492 and 145868501.

It is not a weakly prime, because it can be changed into another prime (145868531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72934269 + 72934270.

It is an arithmetic number, because the mean of its divisors is an integer number (72934270).

Almost surely, 2^145868539 is an apocalyptic number.

145868539 is a deficient number, since it is larger than the sum of its proper divisors (1).

145868539 is an equidigital number, since it uses as much as digits as its factorization.

145868539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The square root of 145868539 is about 12077.6048536123. The cubic root of 145868539 is about 526.4056529016.

The spelling of 145868539 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, five hundred thirty-nine".