140341986 has 48 divisors (see below), whose sum is σ = 312117624. Its totient is φ = 45556992.

The previous prime is 140341973. The next prime is 140341997. The reversal of 140341986 is 689143041.

140341986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 87329025 + 53012961 = 9345^2 + 7281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140341986.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149310 + ... + 150246.

Almost surely, 2^140341986 is an apocalyptic number.

140341986 is an abundant number, since it is smaller than the sum of its proper divisors (171775638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140341986 is a wasteful number, since it uses less digits than its factorization.

140341986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140341986 is about 11846.6022977054. The cubic root of 140341986 is about 519.6718664541.

The spelling of 140341986 in words is "one hundred forty million, three hundred forty-one thousand, nine hundred eighty-six".