146073493 has 4 divisors (see below), whose sum is σ = 151110540. Its totient is φ = 141036448.

The previous prime is 146073427. The next prime is 146073517. The reversal of 146073493 is 394370641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66471409 + 79602084 = 8153^2 + 8922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146073493 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 (146073413) 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, 2518480 + ... + 2518537.

It is an arithmetic number, because the mean of its divisors is an integer number (37777635).

Almost surely, 2^146073493 is an apocalyptic number.

It is an amenable number.

146073493 is a deficient number, since it is larger than the sum of its proper divisors (5037047).

146073493 is an equidigital number, since it uses as much as digits as its factorization.

146073493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037046.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 146073493 is about 12086.0867529569. The cubic root of 146073493 is about 526.6520813049.

The spelling of 146073493 in words is "one hundred forty-six million, seventy-three thousand, four hundred ninety-three".