140457765 has 24 divisors (see below), whose sum is σ = 261424800. Its totient is φ = 64208928.

The previous prime is 140457739. The next prime is 140457781. The reversal of 140457765 is 567754041.

It is not a de Polignac number, because 140457765 - 2⁷ = 140457637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94815 + ... + 96284.

It is an arithmetic number, because the mean of its divisors is an integer number (10892700).

Almost surely, 2^140457765 is an apocalyptic number.

140457765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140457765 is a deficient number, since it is larger than the sum of its proper divisors (120967035).

140457765 is a wasteful number, since it uses less digits than its factorization.

140457765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191121 (or 191114 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 140457765 is about 11851.4878812747. The cubic root of 140457765 is about 519.8147330636.

The spelling of 140457765 in words is "one hundred forty million, four hundred fifty-seven thousand, seven hundred sixty-five".