140775591 has 16 divisors (see below), whose sum is σ = 209760768. Its totient is φ = 83236800.

The previous prime is 140775581. The next prime is 140775601. The reversal of 140775591 is 195577041.

It is an interprime number because it is at equal distance from previous prime (140775581) and next prime (140775601).

It is not a de Polignac number, because 140775591 - 2⁶ = 140775527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140775511) 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, 50671 + ... + 53376.

It is an arithmetic number, because the mean of its divisors is an integer number (13110048).

Almost surely, 2^140775591 is an apocalyptic number.

140775591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140775591 is a deficient number, since it is larger than the sum of its proper divisors (68985177).

140775591 is a wasteful number, since it uses less digits than its factorization.

140775591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104102.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 140775591 is about 11864.8890007450. The cubic root of 140775591 is about 520.2065143738.

The spelling of 140775591 in words is "one hundred forty million, seven hundred seventy-five thousand, five hundred ninety-one".