2138097955 has 8 divisors (see below), whose sum is σ = 2932248672. Its totient is φ = 1466124288.

The previous prime is 2138097953. The next prime is 2138097961. The reversal of 2138097955 is 5597908312.

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 2138097955 - 2¹ = 2138097953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138097899 and 2138097908.

It is not an unprimeable number, because it can be changed into a prime (2138097953) 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 7 ways as a sum of consecutive naturals, for example, 30544222 + ... + 30544291.

It is an arithmetic number, because the mean of its divisors is an integer number (366531084).

Almost surely, 2^2138097955 is an apocalyptic number.

2138097955 is a deficient number, since it is larger than the sum of its proper divisors (794150717).

2138097955 is an equidigital number, since it uses as much as digits as its factorization.

2138097955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61088525.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 2138097955 is about 46239.5713107291. The cubic root of 2138097955 is about 1288.2768401345.

The spelling of 2138097955 in words is "two billion, one hundred thirty-eight million, ninety-seven thousand, nine hundred fifty-five".