123501140 has 96 divisors (see below), whose sum is σ = 322963200. Its totient is φ = 38707200.

The previous prime is 123501139. The next prime is 123501151. The reversal of 123501140 is 41105321.

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, 76340 + ... + 77940.

It is an arithmetic number, because the mean of its divisors is an integer number (3364200).

Almost surely, 2^123501140 is an apocalyptic number.

123501140 is a gapful number since it is divisible by the number (10) 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 123501140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161481600).

123501140 is an abundant number, since it is smaller than the sum of its proper divisors (199462060).

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

123501140 is a wasteful number, since it uses less digits than its factorization.

123501140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 123501140 is about 11113.1066763529. The cubic root of 123501140 is about 497.9934785144.

Adding to 123501140 its reverse (41105321), we get a palindrome (164606461).

It can be divided in two parts, 123501 and 140, that multiplied together give a triangular number (17290140 = T₅₈₈₀).

The spelling of 123501140 in words is "one hundred twenty-three million, five hundred one thousand, one hundred forty".