140291677 has 4 divisors (see below), whose sum is σ = 140315616. Its totient is φ = 140267740.

The previous prime is 140291653. The next prime is 140291713. The reversal of 140291677 is 776192041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 776192041 = 401 ⋅1935641.

It is a cyclic number.

It is not a de Polignac number, because 140291677 - 2¹¹ = 140289629 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 (140241677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3402 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (35078904).

Almost surely, 2^140291677 is an apocalyptic number.

It is an amenable number.

140291677 is a deficient number, since it is larger than the sum of its proper divisors (23939).

140291677 is a wasteful number, since it uses less digits than its factorization.

140291677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 140291677 is about 11844.4787559436. The cubic root of 140291677 is about 519.6097626906.

The spelling of 140291677 in words is "one hundred forty million, two hundred ninety-one thousand, six hundred seventy-seven".