1245135132 has 48 divisors (see below), whose sum is σ = 3398035200. Its totient is φ = 393199920.

The previous prime is 1245135083. The next prime is 1245135161. The reversal of 1245135132 is 2315315421.

1245135132 is a `hidden beast` number, since 12 + 4 + 513 + 5 + 132 = 666.

It is a super-3 number, since 3×1245135132³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1245135096 and 1245135105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301344 + ... + 305447.

It is an arithmetic number, because the mean of its divisors is an integer number (70792400).

Almost surely, 2^1245135132 is an apocalyptic number.

1245135132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1245135132 is an abundant number, since it is smaller than the sum of its proper divisors (2152900068).

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

1245135132 is a wasteful number, since it uses less digits than its factorization.

1245135132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606823 (or 606815 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1245135132 is about 35286.4723654831. The cubic root of 1245135132 is about 1075.8180560971.

The spelling of 1245135132 in words is "one billion, two hundred forty-five million, one hundred thirty-five thousand, one hundred thirty-two".