140371977 has 8 divisors (see below), whose sum is σ = 193616640. Its totient is φ = 90354320.

The previous prime is 140371963. The next prime is 140371991. The reversal of 140371977 is 779173041.

It is an interprime number because it is at equal distance from previous prime (140371963) and next prime (140371991).

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 140371977 - 2⁴ = 140371961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140371927) 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, 806649 + ... + 806822.

It is an arithmetic number, because the mean of its divisors is an integer number (24202080).

Almost surely, 2^140371977 is an apocalyptic number.

It is an amenable number.

140371977 is a deficient number, since it is larger than the sum of its proper divisors (53244663).

140371977 is a wasteful number, since it uses less digits than its factorization.

140371977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613503.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 140371977 is about 11847.8680360645. The cubic root of 140371977 is about 519.7088816751.

The spelling of 140371977 in words is "one hundred forty million, three hundred seventy-one thousand, nine hundred seventy-seven".