145430639 has 2 divisors, whose sum is σ = 145430640. Its totient is φ = 145430638.

The previous prime is 145430629. The next prime is 145430657. The reversal of 145430639 is 936034541.

It is a happy number.

145430639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145430639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145430599 and 145430608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145430629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72715319 + 72715320.

It is an arithmetic number, because the mean of its divisors is an integer number (72715320).

Almost surely, 2^145430639 is an apocalyptic number.

145430639 is a deficient number, since it is larger than the sum of its proper divisors (1).

145430639 is an equidigital number, since it uses as much as digits as its factorization.

145430639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 145430639 is about 12059.4626331359. The cubic root of 145430639 is about 525.8783651337.

The spelling of 145430639 in words is "one hundred forty-five million, four hundred thirty thousand, six hundred thirty-nine".