140969386 has 4 divisors (see below), whose sum is σ = 211454082. Its totient is φ = 70484692.

The previous prime is 140969363. The next prime is 140969399. The reversal of 140969386 is 683969041.

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., 120890025 + 20079361 = 10995^2 + 4481^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35242345 + ... + 35242348.

Almost surely, 2^140969386 is an apocalyptic number.

140969386 is a deficient number, since it is larger than the sum of its proper divisors (70484696).

140969386 is an equidigital number, since it uses as much as digits as its factorization.

140969386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70484695.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 140969386 is about 11873.0529351132. The cubic root of 140969386 is about 520.4451144402.

The spelling of 140969386 in words is "one hundred forty million, nine hundred sixty-nine thousand, three hundred eighty-six".