140145894 has 24 divisors (see below), whose sum is σ = 347028240. Its totient is φ = 40041648.

The previous prime is 140145871. The next prime is 140145917. The reversal of 140145894 is 498541041.

140145894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140145871) and next prime (140145917).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556009 + ... + 556260.

It is an arithmetic number, because the mean of its divisors is an integer number (14459510).

Almost surely, 2^140145894 is an apocalyptic number.

140145894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140145894 is an abundant number, since it is smaller than the sum of its proper divisors (206882346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140145894 is a wasteful number, since it uses less digits than its factorization.

140145894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112284 (or 1112281 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 140145894 is about 11838.3231076027. The cubic root of 140145894 is about 519.4297175036.

The spelling of 140145894 in words is "one hundred forty million, one hundred forty-five thousand, eight hundred ninety-four".