2054137898 has 4 divisors (see below), whose sum is σ = 3081206850. Its totient is φ = 1027068948.

The previous prime is 2054137873. The next prime is 2054137901. The reversal of 2054137898 is 8987314502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1810247209 + 243890689 = 42547^2 + 15617^2 .

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 as a sum of consecutive naturals, namely, 513534473 + ... + 513534476.

Almost surely, 2^2054137898 is an apocalyptic number.

2054137898 is a deficient number, since it is larger than the sum of its proper divisors (1027068952).

2054137898 is a wasteful number, since it uses less digits than its factorization.

2054137898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027068951.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 2054137898 is about 45322.5980941075. The cubic root of 2054137898 is about 1271.1882358828.

The spelling of 2054137898 in words is "two billion, fifty-four million, one hundred thirty-seven thousand, eight hundred ninety-eight".