1201178825 has 24 divisors (see below), whose sum is σ = 1856994240. Its totient is φ = 748785600.

The previous prime is 1201178821. The next prime is 1201178857. The reversal of 1201178825 is 5288711021.

It is not a de Polignac number, because 1201178825 - 2² = 1201178821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1201178821) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 310070 + ... + 313919.

It is an arithmetic number, because the mean of its divisors is an integer number (77374760).

Almost surely, 2^1201178825 is an apocalyptic number.

It is an amenable number.

1201178825 is a deficient number, since it is larger than the sum of its proper divisors (655815415).

1201178825 is a wasteful number, since it uses less digits than its factorization.

1201178825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624017 (or 624012 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 35.

The square root of 1201178825 is about 34658.0268480478. The cubic root of 1201178825 is about 1063.0064243262.

Adding to 1201178825 its reverse (5288711021), we get a palindrome (6489889846).

The spelling of 1201178825 in words is "one billion, two hundred one million, one hundred seventy-eight thousand, eight hundred twenty-five".