87146193 has 4 divisors (see below), whose sum is σ = 116194928. Its totient is φ = 58097460.

The previous prime is 87146167. The next prime is 87146203. The reversal of 87146193 is 39164178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87146193 - 2⁵ = 87146161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87146113) 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, 14524363 + ... + 14524368.

It is an arithmetic number, because the mean of its divisors is an integer number (29048732).

Almost surely, 2^87146193 is an apocalyptic number.

It is an amenable number.

87146193 is a deficient number, since it is larger than the sum of its proper divisors (29048735).

87146193 is a wasteful number, since it uses less digits than its factorization.

87146193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29048734.

The product of its digits is 36288, while the sum is 39.

The square root of 87146193 is about 9335.2125310568. The cubic root of 87146193 is about 443.3528179701.

The spelling of 87146193 in words is "eighty-seven million, one hundred forty-six thousand, one hundred ninety-three".