1238195055 has 16 divisors (see below), whose sum is σ = 1982012544. Its totient is φ = 660070560.

The previous prime is 1238195029. The next prime is 1238195069. The reversal of 1238195055 is 5505918321.

It is not a de Polignac number, because 1238195055 - 2⁸ = 1238194799 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17620 + ... + 52790.

It is an arithmetic number, because the mean of its divisors is an integer number (123875784).

Almost surely, 2^1238195055 is an apocalyptic number.

1238195055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1238195055 is a deficient number, since it is larger than the sum of its proper divisors (743817489).

1238195055 is a wasteful number, since it uses less digits than its factorization.

1238195055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37526.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 1238195055 is about 35187.9958934862. The cubic root of 1238195055 is about 1073.8155492289.

The spelling of 1238195055 in words is "one billion, two hundred thirty-eight million, one hundred ninety-five thousand, fifty-five".