146615994 has 96 divisors (see below), whose sum is σ = 382427136. Its totient is φ = 41232240.

The previous prime is 146615981. The next prime is 146616049. The reversal of 146615994 is 499516641.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241239 + ... + 241845.

It is an arithmetic number, because the mean of its divisors is an integer number (3983616).

Almost surely, 2^146615994 is an apocalyptic number.

146615994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146615994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191213568).

146615994 is an abundant number, since it is smaller than the sum of its proper divisors (235811142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146615994 is an equidigital number, since it uses as much as digits as its factorization.

146615994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 690 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 146615994 is about 12108.5091567872. The cubic root of 146615994 is about 527.3032519478.

The spelling of 146615994 in words is "one hundred forty-six million, six hundred fifteen thousand, nine hundred ninety-four".