1245205152 has 36 divisors (see below), whose sum is σ = 3541052970. Its totient is φ = 415068288.

The previous prime is 1245205123. The next prime is 1245205237. The reversal of 1245205152 is 2515025421.

1245205152 is a `hidden beast` number, since 124 + 5 + 20 + 515 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1188594576 + 56610576 = 34476^2 + 7524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2161527 + ... + 2162102.

Almost surely, 2^1245205152 is an apocalyptic number.

1245205152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1245205152 is an abundant number, since it is smaller than the sum of its proper divisors (2295847818).

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

1245205152 is a wasteful number, since it uses less digits than its factorization.

1245205152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323645 (or 4323634 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1245205152 is about 35287.4645164540. The cubic root of 1245205152 is about 1075.8382218784.

The spelling of 1245205152 in words is "one billion, two hundred forty-five million, two hundred five thousand, one hundred fifty-two".