140779653 has 16 divisors (see below), whose sum is σ = 214695936. Its totient is φ = 80380080.

The previous prime is 140779651. The next prime is 140779687. The reversal of 140779653 is 356977041.

It is not a de Polignac number, because 140779653 - 2¹ = 140779651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140779651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37500 + ... + 41082.

It is an arithmetic number, because the mean of its divisors is an integer number (13418496).

Almost surely, 2^140779653 is an apocalyptic number.

It is an amenable number.

140779653 is a deficient number, since it is larger than the sum of its proper divisors (73916283).

140779653 is a wasteful number, since it uses less digits than its factorization.

140779653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 140779653 is about 11865.0601768385. The cubic root of 140779653 is about 520.2115177472.

The spelling of 140779653 in words is "one hundred forty million, seven hundred seventy-nine thousand, six hundred fifty-three".