146045813 has 4 divisors (see below), whose sum is σ = 149607948. Its totient is φ = 142483680.

The previous prime is 146045789. The next prime is 146045821. The reversal of 146045813 is 318540641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318540641 = 1093 ⋅291437.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 143952004 = 1447^2 + 11998^2 .

It is a cyclic number.

It is not a de Polignac number, because 146045813 - 2²² = 141851509 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 146045813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146045213) 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, 1781006 + ... + 1781087.

It is an arithmetic number, because the mean of its divisors is an integer number (37401987).

Almost surely, 2^146045813 is an apocalyptic number.

It is an amenable number.

146045813 is a deficient number, since it is larger than the sum of its proper divisors (3562135).

146045813 is an equidigital number, since it uses as much as digits as its factorization.

146045813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562134.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 146045813 is about 12084.9415803305. The cubic root of 146045813 is about 526.6188134609.

The spelling of 146045813 in words is "one hundred forty-six million, forty-five thousand, eight hundred thirteen".