140986637 has 16 divisors (see below), whose sum is σ = 158687232. Its totient is φ = 124150320.

The previous prime is 140986633. The next prime is 140986663. The reversal of 140986637 is 736689041.

It is a cyclic number.

It is not a de Polignac number, because 140986637 - 2² = 140986633 is a prime.

It is a house number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140986633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58898 + ... + 61244.

It is an arithmetic number, because the mean of its divisors is an integer number (9917952).

Almost surely, 2^140986637 is an apocalyptic number.

It is an amenable number.

140986637 is a deficient number, since it is larger than the sum of its proper divisors (17700595).

140986637 is a wasteful number, since it uses less digits than its factorization.

140986637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 140986637 is about 11873.7793898994. The cubic root of 140986637 is about 520.4663432396.

The spelling of 140986637 in words is "one hundred forty million, nine hundred eighty-six thousand, six hundred thirty-seven".