140661757 has 8 divisors (see below), whose sum is σ = 149688000. Its totient is φ = 131719104.

The previous prime is 140661749. The next prime is 140661761. The reversal of 140661757 is 757166041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140661757 - 2³ = 140661749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140661727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17407 + ... + 24172.

It is an arithmetic number, because the mean of its divisors is an integer number (18711000).

Almost surely, 2^140661757 is an apocalyptic number.

140661757 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

140661757 is a deficient number, since it is larger than the sum of its proper divisors (9026243).

140661757 is a wasteful number, since it uses less digits than its factorization.

140661757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41795.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 140661757 is about 11860.0909355704. The cubic root of 140661757 is about 520.0662600477.

The spelling of 140661757 in words is "one hundred forty million, six hundred sixty-one thousand, seven hundred fifty-seven".