145035139 has 2 divisors, whose sum is σ = 145035140. Its totient is φ = 145035138.

The previous prime is 145035131. The next prime is 145035181. The reversal of 145035139 is 931530541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145035139 - 2³ = 145035131 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145035139.

It is not a weakly prime, because it can be changed into another prime (145035131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72517569 + 72517570.

It is an arithmetic number, because the mean of its divisors is an integer number (72517570).

Almost surely, 2^145035139 is an apocalyptic number.

145035139 is a deficient number, since it is larger than the sum of its proper divisors (1).

145035139 is an equidigital number, since it uses as much as digits as its factorization.

145035139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 145035139 is about 12043.0535579644. The cubic root of 145035139 is about 525.4012219421.

The spelling of 145035139 in words is "one hundred forty-five million, thirty-five thousand, one hundred thirty-nine".