146808973 has 6 divisors (see below), whose sum is σ = 147897006. Its totient is φ = 145723032.

The previous prime is 146808917. The next prime is 146808983. The reversal of 146808973 is 379808641.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 113145769 + 33663204 = 10637^2 + 5802^2 .

It is not a de Polignac number, because 146808973 - 2¹³ = 146800781 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 (146808983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151336 + ... + 152302.

It is an arithmetic number, because the mean of its divisors is an integer number (24649501).

Almost surely, 2^146808973 is an apocalyptic number.

It is an amenable number.

146808973 is a deficient number, since it is larger than the sum of its proper divisors (1088033).

146808973 is an frugal number, since it uses more digits than its factorization.

146808973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 146808973 is about 12116.4752712990. The cubic root of 146808973 is about 527.5344996640.

It can be divided in two parts, 14680 and 8973, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 146808973 in words is "one hundred forty-six million, eight hundred eight thousand, nine hundred seventy-three".