140542065 has 24 divisors (see below), whose sum is σ = 251467008. Its totient is φ = 72537120.

The previous prime is 140542063. The next prime is 140542097. The reversal of 140542065 is 560245041.

It is not a de Polignac number, because 140542065 - 2¹ = 140542063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140542063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48979 + ... + 51768.

It is an arithmetic number, because the mean of its divisors is an integer number (10477792).

Almost surely, 2^140542065 is an apocalyptic number.

140542065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140542065 is a deficient number, since it is larger than the sum of its proper divisors (110924943).

140542065 is a wasteful number, since it uses less digits than its factorization.

140542065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100789 (or 100786 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 140542065 is about 11855.0438632677. The cubic root of 140542065 is about 519.9187064732.

The spelling of 140542065 in words is "one hundred forty million, five hundred forty-two thousand, sixty-five".