140512563 has 32 divisors (see below), whose sum is σ = 215377920. Its totient is φ = 91614888.

The previous prime is 140512549. The next prime is 140512579. The reversal of 140512563 is 365215041.

140512563 is a `hidden beast` number, since 1 + 405 + 1 + 256 + 3 = 666.

It is not a de Polignac number, because 140512563 - 2⁶ = 140512499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140512583) 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, 102106 + ... + 103472.

It is an arithmetic number, because the mean of its divisors is an integer number (6730560).

Almost surely, 2^140512563 is an apocalyptic number.

140512563 is a deficient number, since it is larger than the sum of its proper divisors (74865357).

140512563 is an frugal number, since it uses more digits than its factorization.

140512563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 140512563 is about 11853.7995174543. The cubic root of 140512563 is about 519.8823242103.

The spelling of 140512563 in words is "one hundred forty million, five hundred twelve thousand, five hundred sixty-three".