140813236 has 12 divisors (see below), whose sum is σ = 247675428. Its totient is φ = 70048832.

The previous prime is 140813213. The next prime is 140813249. The reversal of 140813236 is 632318041.

It can be written as a sum of positive squares in 2 ways, for example, as 135024400 + 5788836 = 11620^2 + 2406^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88561 + ... + 90136.

It is an arithmetic number, because the mean of its divisors is an integer number (20639619).

Almost surely, 2^140813236 is an apocalyptic number.

It is an amenable number.

140813236 is a deficient number, since it is larger than the sum of its proper divisors (106862192).

140813236 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 140813236 = (323861401)₉.

140813236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178898 (or 178896 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 140813236 is about 11866.4752980824. The cubic root of 140813236 is about 520.2528799612.

The spelling of 140813236 in words is "one hundred forty million, eight hundred thirteen thousand, two hundred thirty-six".