140691723 has 16 divisors (see below), whose sum is σ = 194992896. Its totient is φ = 90154080.

The previous prime is 140691709. The next prime is 140691737. The reversal of 140691723 is 327196041.

It is an interprime number because it is at equal distance from previous prime (140691709) and next prime (140691737).

It is not a de Polignac number, because 140691723 - 2⁹ = 140691211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140690723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578 + ... + 16848.

It is an arithmetic number, because the mean of its divisors is an integer number (12187056).

Almost surely, 2^140691723 is an apocalyptic number.

140691723 is a deficient number, since it is larger than the sum of its proper divisors (54301173).

140691723 is a wasteful number, since it uses less digits than its factorization.

140691723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15394.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 140691723 is about 11861.3541806996. The cubic root of 140691723 is about 520.1031883485.

The spelling of 140691723 in words is "one hundred forty million, six hundred ninety-one thousand, seven hundred twenty-three".