72141886 has 4 divisors (see below), whose sum is σ = 108212832. Its totient is φ = 36070942.

The previous prime is 72141847. The next prime is 72141889. The reversal of 72141886 is 68814127.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72141889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18035470 + ... + 18035473.

It is an arithmetic number, because the mean of its divisors is an integer number (27053208).

Almost surely, 2^72141886 is an apocalyptic number.

72141886 is a deficient number, since it is larger than the sum of its proper divisors (36070946).

72141886 is a wasteful number, since it uses less digits than its factorization.

72141886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36070945.

The product of its digits is 21504, while the sum is 37.

The square root of 72141886 is about 8493.6379720353. The cubic root of 72141886 is about 416.2898582375.

The spelling of 72141886 in words is "seventy-two million, one hundred forty-one thousand, eight hundred eighty-six".