140263505 has 8 divisors (see below), whose sum is σ = 169257600. Its totient is φ = 111583216.

The previous prime is 140263483. The next prime is 140263531. The reversal of 140263505 is 505362041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140263505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77465 + ... + 79254.

It is an arithmetic number, because the mean of its divisors is an integer number (21157200).

Almost surely, 2^140263505 is an apocalyptic number.

It is an amenable number.

140263505 is a deficient number, since it is larger than the sum of its proper divisors (28994095).

140263505 is a wasteful number, since it uses less digits than its factorization.

140263505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156903.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 140263505 is about 11843.2894501486. The cubic root of 140263505 is about 519.5749793817.

The spelling of 140263505 in words is "one hundred forty million, two hundred sixty-three thousand, five hundred five".