1201425255 has 24 divisors (see below), whose sum is σ = 2133265680. Its totient is φ = 625130880.

The previous prime is 1201425191. The next prime is 1201425259. The reversal of 1201425255 is 5525241021.

1201425255 is a `hidden beast` number, since 120 + 14 + 2 + 525 + 5 = 666.

It is not a de Polignac number, because 1201425255 - 2⁶ = 1201425191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201425259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323745 + ... + 327434.

It is an arithmetic number, because the mean of its divisors is an integer number (88886070).

Almost surely, 2^1201425255 is an apocalyptic number.

1201425255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201425255 is a deficient number, since it is larger than the sum of its proper divisors (931840425).

1201425255 is a wasteful number, since it uses less digits than its factorization.

1201425255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651231 (or 651228 counting only the distinct ones).

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

The square root of 1201425255 is about 34661.5818306089. The cubic root of 1201425255 is about 1063.0791136865.

Adding to 1201425255 its reverse (5525241021), we get a palindrome (6726666276).

The spelling of 1201425255 in words is "one billion, two hundred one million, four hundred twenty-five thousand, two hundred fifty-five".