146541861 has 6 divisors (see below), whose sum is σ = 211671590. Its totient is φ = 97694568.

The previous prime is 146541859. The next prime is 146541869. The reversal of 146541861 is 168145641.

It can be written as a sum of positive squares in only one way, i.e., 97891236 + 48650625 = 9894^2 + 6975^2 .

It is not a de Polignac number, because 146541861 - 2¹ = 146541859 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 (146541869) 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, 8141206 + ... + 8141223.

Almost surely, 2^146541861 is an apocalyptic number.

It is an amenable number.

146541861 is a deficient number, since it is larger than the sum of its proper divisors (65129729).

146541861 is a wasteful number, since it uses less digits than its factorization.

146541861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16282435 (or 16282432 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 146541861 is about 12105.4475753687. The cubic root of 146541861 is about 527.2143640505.

The spelling of 146541861 in words is "one hundred forty-six million, five hundred forty-one thousand, eight hundred sixty-one".