141521986 has 4 divisors (see below), whose sum is σ = 212282982. Its totient is φ = 70760992.

The previous prime is 141521953. The next prime is 141521993. The reversal of 141521986 is 689125141.

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

It can be written as a sum of positive squares in only one way, i.e., 137241225 + 4280761 = 11715^2 + 2069^2 .

It is an unprimeable number.

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, 35380495 + ... + 35380498.

Almost surely, 2^141521986 is an apocalyptic number.

141521986 is a deficient number, since it is larger than the sum of its proper divisors (70760996).

141521986 is an equidigital number, since it uses as much as digits as its factorization.

141521986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70760995.

The product of its digits is 17280, while the sum is 37.

The square root of 141521986 is about 11896.3013579852. The cubic root of 141521986 is about 521.1242760652.

The spelling of 141521986 in words is "one hundred forty-one million, five hundred twenty-one thousand, nine hundred eighty-six".