146412491 has 2 divisors, whose sum is σ = 146412492. Its totient is φ = 146412490.

The previous prime is 146412481. The next prime is 146412527. The reversal of 146412491 is 194214641.

146412491 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-146412491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146412401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73206245 + 73206246.

It is an arithmetic number, because the mean of its divisors is an integer number (73206246).

Almost surely, 2^146412491 is an apocalyptic number.

146412491 is a deficient number, since it is larger than the sum of its proper divisors (1).

146412491 is an equidigital number, since it uses as much as digits as its factorization.

146412491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 146412491 is about 12100.1029334465. The cubic root of 146412491 is about 527.0591733476.

The spelling of 146412491 in words is "one hundred forty-six million, four hundred twelve thousand, four hundred ninety-one".