1238025655 has 8 divisors (see below), whose sum is σ = 1563822000. Its totient is φ = 938293056.

The previous prime is 1238025643. The next prime is 1238025673. The reversal of 1238025655 is 5565208321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1238025655 - 2¹⁷ = 1237894583 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6515830 + ... + 6516019.

It is an arithmetic number, because the mean of its divisors is an integer number (195477750).

Almost surely, 2^1238025655 is an apocalyptic number.

1238025655 is a deficient number, since it is larger than the sum of its proper divisors (325796345).

1238025655 is a wasteful number, since it uses less digits than its factorization.

1238025655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13031873.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 1238025655 is about 35185.5887402783. The cubic root of 1238025655 is about 1073.7665766944.

The spelling of 1238025655 in words is "one billion, two hundred thirty-eight million, twenty-five thousand, six hundred fifty-five".