145402039 has 2 divisors, whose sum is σ = 145402040. Its totient is φ = 145402038.

The previous prime is 145402013. The next prime is 145402043. The reversal of 145402039 is 930204541.

145402039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145402039 - 2⁵ = 145402007 is a prime.

It is a super-2 number, since 2×145402039² = 42283505890715042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145401998 and 145402016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145402639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72701019 + 72701020.

It is an arithmetic number, because the mean of its divisors is an integer number (72701020).

Almost surely, 2^145402039 is an apocalyptic number.

145402039 is a deficient number, since it is larger than the sum of its proper divisors (1).

145402039 is an equidigital number, since it uses as much as digits as its factorization.

145402039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 145402039 is about 12058.2767840185. The cubic root of 145402039 is about 525.8438902634.

The spelling of 145402039 in words is "one hundred forty-five million, four hundred two thousand, thirty-nine".