147274493 has 2 divisors, whose sum is σ = 147274494. Its totient is φ = 147274492.

The previous prime is 147274487. The next prime is 147274549. The reversal of 147274493 is 394472741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139310809 + 7963684 = 11803^2 + 2822^2 .

It is a cyclic number.

It is not a de Polignac number, because 147274493 - 2²⁴ = 130497277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147274493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147274423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73637246 + 73637247.

It is an arithmetic number, because the mean of its divisors is an integer number (73637247).

Almost surely, 2^147274493 is an apocalyptic number.

It is an amenable number.

147274493 is a deficient number, since it is larger than the sum of its proper divisors (1).

147274493 is an equidigital number, since it uses as much as digits as its factorization.

147274493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 147274493 is about 12135.6702740310. The cubic root of 147274493 is about 528.0915018282.

The spelling of 147274493 in words is "one hundred forty-seven million, two hundred seventy-four thousand, four hundred ninety-three".