140706556 has 6 divisors (see below), whose sum is σ = 246236480. Its totient is φ = 70353276.

The previous prime is 140706541. The next prime is 140706581. The reversal of 140706556 is 655607041.

It is a happy number.

It is a super-2 number, since 2×140706556² = 39596669802762272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17588316 + ... + 17588323.

Almost surely, 2^140706556 is an apocalyptic number.

It is an amenable number.

140706556 is a deficient number, since it is larger than the sum of its proper divisors (105529924).

140706556 is a wasteful number, since it uses less digits than its factorization.

140706556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35176643 (or 35176641 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 140706556 is about 11861.9794300951. The cubic root of 140706556 is about 520.1214657077.

The spelling of 140706556 in words is "one hundred forty million, seven hundred six thousand, five hundred fifty-six".