1325235140 has 48 divisors (see below), whose sum is σ = 2817929520. Its totient is φ = 523468800.

The previous prime is 1325235139. The next prime is 1325235157. The reversal of 1325235140 is 415325231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 48888064 + 1276347076 = 6992^2 + 35726^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148804 + ... + 1149956.

It is an arithmetic number, because the mean of its divisors is an integer number (58706865).

Almost surely, 2^1325235140 is an apocalyptic number.

1325235140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325235140 is an abundant number, since it is smaller than the sum of its proper divisors (1492694380).

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

1325235140 is a wasteful number, since it uses less digits than its factorization.

1325235140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1325235140 is about 36403.7791994183. The cubic root of 1325235140 is about 1098.4095859358.

Subtracting from 1325235140 its reverse (415325231), we obtain a palindrome (909909909).

The spelling of 1325235140 in words is "one billion, three hundred twenty-five million, two hundred thirty-five thousand, one hundred forty".