146012389 has 2 divisors, whose sum is σ = 146012390. Its totient is φ = 146012388.

The previous prime is 146012381. The next prime is 146012437. The reversal of 146012389 is 983210641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91872225 + 54140164 = 9585^2 + 7358^2 .

It is a cyclic number.

It is not a de Polignac number, because 146012389 - 2³ = 146012381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146012381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73006194 + 73006195.

It is an arithmetic number, because the mean of its divisors is an integer number (73006195).

Almost surely, 2^146012389 is an apocalyptic number.

It is an amenable number.

146012389 is a deficient number, since it is larger than the sum of its proper divisors (1).

146012389 is an equidigital number, since it uses as much as digits as its factorization.

146012389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 146012389 is about 12083.5586231871. The cubic root of 146012389 is about 526.5786364557.

The spelling of 146012389 in words is "one hundred forty-six million, twelve thousand, three hundred eighty-nine".