157140487082 has 4 divisors (see below), whose sum is σ = 235710730626. Its totient is φ = 78570243540.

The previous prime is 157140487073. The next prime is 157140487129. The reversal of 157140487082 is 280784041751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280784041751 = 3557 ⋅78938443.

It can be written as a sum of positive squares in only one way, i.e., 120395814361 + 36744672721 = 346981^2 + 191689^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39285121769 + ... + 39285121772.

Almost surely, 2^157140487082 is an apocalyptic number.

157140487082 is a deficient number, since it is larger than the sum of its proper divisors (78570243544).

157140487082 is an equidigital number, since it uses as much as digits as its factorization.

157140487082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78570243543.

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 157140487082 in words is "one hundred fifty-seven billion, one hundred forty million, four hundred eighty-seven thousand, eighty-two".