140113830 has 64 divisors (see below), whose sum is σ = 357773760. Its totient is φ = 34996224.

The previous prime is 140113793. The next prime is 140113837. The reversal of 140113830 is 38311041.

It is a junction number, because it is equal to n+sod(n) for n = 140113797 and 140113806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140113837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130536 + ... + 131604.

It is an arithmetic number, because the mean of its divisors is an integer number (5590215).

Almost surely, 2^140113830 is an apocalyptic number.

140113830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140113830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178886880).

140113830 is an abundant number, since it is smaller than the sum of its proper divisors (217659930).

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

140113830 is a wasteful number, since it uses less digits than its factorization.

140113830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 140113830 is about 11836.9687842792. The cubic root of 140113830 is about 519.3901010147.

Adding to 140113830 its reverse (38311041), we get a palindrome (178424871).

The spelling of 140113830 in words is "one hundred forty million, one hundred thirteen thousand, eight hundred thirty".