140885891 has 4 divisors (see below), whose sum is σ = 140966952. Its totient is φ = 140804832.

The previous prime is 140885887. The next prime is 140885911. The reversal of 140885891 is 198588041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140885891 - 2² = 140885887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140885821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37865 + ... + 41418.

It is an arithmetic number, because the mean of its divisors is an integer number (35241738).

Almost surely, 2^140885891 is an apocalyptic number.

140885891 is a deficient number, since it is larger than the sum of its proper divisors (81061).

140885891 is an equidigital number, since it uses as much as digits as its factorization.

140885891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81060.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 140885891 is about 11869.5362588435. The cubic root of 140885891 is about 520.3423423700.

The spelling of 140885891 in words is "one hundred forty million, eight hundred eighty-five thousand, eight hundred ninety-one".