146459997 has 18 divisors (see below), whose sum is σ = 213273242. Its totient is φ = 96852384.

The previous prime is 146459977. The next prime is 146460001. The reversal of 146459997 is 799954641.

It is a happy number.

146459997 is a `hidden beast` number, since 1 + 46 + 4 + 599 + 9 + 7 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 10830681 + 135629316 = 3291^2 + 11646^2 .

It is not a de Polignac number, because 146459997 - 2⁷ = 146459869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146459977) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 199443 + ... + 200175.

Almost surely, 2^146459997 is an apocalyptic number.

It is an amenable number.

146459997 is a deficient number, since it is larger than the sum of its proper divisors (66813245).

146459997 is an equidigital number, since it uses as much as digits as its factorization.

146459997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 885 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 146459997 is about 12102.0658153887. The cubic root of 146459997 is about 527.1161715935.

It can be divided in two parts, 146459 and 997, that added together give a square (147456 = 384²).

The spelling of 146459997 in words is "one hundred forty-six million, four hundred fifty-nine thousand, nine hundred ninety-seven".