1236052140 has 48 divisors (see below), whose sum is σ = 3495229920. Its totient is φ = 326348800.

The previous prime is 1236052109. The next prime is 1236052141. The reversal of 1236052140 is 412506321.

It is a self number, because there is not a number n which added to its sum of digits gives 1236052140.

It is not an unprimeable number, because it can be changed into a prime (1236052141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95925 + ... + 108044.

It is an arithmetic number, because the mean of its divisors is an integer number (72817290).

Almost surely, 2^1236052140 is an apocalyptic number.

1236052140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1236052140 is an abundant number, since it is smaller than the sum of its proper divisors (2259177780).

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

1236052140 is a wasteful number, since it uses less digits than its factorization.

1236052140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204082 (or 204080 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1236052140 is about 35157.5331899154. The cubic root of 1236052140 is about 1073.1957157597.

Adding to 1236052140 its reverse (412506321), we get a palindrome (1648558461).

The spelling of 1236052140 in words is "one billion, two hundred thirty-six million, fifty-two thousand, one hundred forty".