140323134 has 64 divisors (see below), whose sum is σ = 342144000. Its totient is φ = 37452288.

The previous prime is 140323123. The next prime is 140323217. The reversal of 140323134 is 431323041.

140323134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140323134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105727 + ... + 107045.

It is an arithmetic number, because the mean of its divisors is an integer number (5346000).

Almost surely, 2^140323134 is an apocalyptic number.

140323134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140323134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171072000).

140323134 is an abundant number, since it is smaller than the sum of its proper divisors (201820866).

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

140323134 is a wasteful number, since it uses less digits than its factorization.

140323134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140323134 is about 11845.8065998057. The cubic root of 140323134 is about 519.6485964098.

Adding to 140323134 its reverse (431323041), we get a palindrome (571646175).

The spelling of 140323134 in words is "one hundred forty million, three hundred twenty-three thousand, one hundred thirty-four".