140111136 has 144 divisors (see below), whose sum is σ = 444382848. Its totient is φ = 41510400.

The previous prime is 140111117. The next prime is 140111141. The reversal of 140111136 is 631111041.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×140111136² = 39262260862420992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148426 + ... + 149366.

It is an arithmetic number, because the mean of its divisors is an integer number (3085992).

Almost surely, 2^140111136 is an apocalyptic number.

140111136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140111136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222191424).

140111136 is an abundant number, since it is smaller than the sum of its proper divisors (304271712).

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

140111136 is a wasteful number, since it uses less digits than its factorization.

140111136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 140111136 is about 11836.8549877068. The cubic root of 140111136 is about 519.3867721834.

Adding to 140111136 its reverse (631111041), we get a palindrome (771222177).

The spelling of 140111136 in words is "one hundred forty million, one hundred eleven thousand, one hundred thirty-six".