140767897 has 4 divisors (see below), whose sum is σ = 140991616. Its totient is φ = 140544180.

The previous prime is 140767873. The next prime is 140767909. The reversal of 140767897 is 798767041.

140767897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140767897 - 2²⁷ = 6550169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140767897.

It is not an unprimeable number, because it can be changed into a prime (140767597) 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, 110913 + ... + 112174.

It is an arithmetic number, because the mean of its divisors is an integer number (35247904).

Almost surely, 2^140767897 is an apocalyptic number.

It is an amenable number.

140767897 is a deficient number, since it is larger than the sum of its proper divisors (223719).

140767897 is an equidigital number, since it uses as much as digits as its factorization.

140767897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223718.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 140767897 is about 11864.5647623501. The cubic root of 140767897 is about 520.1970370162.

The spelling of 140767897 in words is "one hundred forty million, seven hundred sixty-seven thousand, eight hundred ninety-seven".