146105639 has 2 divisors, whose sum is σ = 146105640. Its totient is φ = 146105638.

The previous prime is 146105621. The next prime is 146105689. The reversal of 146105639 is 936501641.

146105639 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-146105639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146105599 and 146105608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146105689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73052819 + 73052820.

It is an arithmetic number, because the mean of its divisors is an integer number (73052820).

Almost surely, 2^146105639 is an apocalyptic number.

146105639 is a deficient number, since it is larger than the sum of its proper divisors (1).

146105639 is an equidigital number, since it uses as much as digits as its factorization.

146105639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 146105639 is about 12087.4165560719. The cubic root of 146105639 is about 526.6907114394.

The spelling of 146105639 in words is "one hundred forty-six million, one hundred five thousand, six hundred thirty-nine".