140723457 has 32 divisors (see below), whose sum is σ = 222842880. Its totient is φ = 77286720.

The previous prime is 140723423. The next prime is 140723483. The reversal of 140723457 is 754327041.

It is not a de Polignac number, because 140723457 - 2¹¹ = 140721409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140723417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189028 + ... + 189770.

It is an arithmetic number, because the mean of its divisors is an integer number (6963840).

Almost surely, 2^140723457 is an apocalyptic number.

It is an amenable number.

140723457 is a deficient number, since it is larger than the sum of its proper divisors (82119423).

140723457 is a wasteful number, since it uses less digits than its factorization.

140723457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 140723457 is about 11862.6918108834. The cubic root of 140723457 is about 520.1422897101.

The spelling of 140723457 in words is "one hundred forty million, seven hundred twenty-three thousand, four hundred fifty-seven".