146394733 has 4 divisors (see below), whose sum is σ = 146426940. Its totient is φ = 146362528.

The previous prime is 146394719. The next prime is 146394763. The reversal of 146394733 is 337493641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 337493641 = 18371².

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 16024009 = 11418^2 + 4003^2 .

It is a cyclic number.

It is not a de Polignac number, because 146394733 - 2¹⁷ = 146263661 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 (146394763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7888 + ... + 18841.

It is an arithmetic number, because the mean of its divisors is an integer number (36606735).

Almost surely, 2^146394733 is an apocalyptic number.

It is an amenable number.

146394733 is a deficient number, since it is larger than the sum of its proper divisors (32207).

146394733 is an equidigital number, since it uses as much as digits as its factorization.

146394733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32206.

The product of its digits is 163296, while the sum is 40.

The square root of 146394733 is about 12099.3691157845. The cubic root of 146394733 is about 527.0378639289.

The spelling of 146394733 in words is "one hundred forty-six million, three hundred ninety-four thousand, seven hundred thirty-three".