1881300136 has 8 divisors (see below), whose sum is σ = 3527437770. Its totient is φ = 940650064.

The previous prime is 1881300133. The next prime is 1881300173. The reversal of 1881300136 is 6310031881.

It can be written as a sum of positive squares in only one way, i.e., 1822777636 + 58522500 = 42694^2 + 7650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1881300098 and 1881300107.

It is not an unprimeable number, because it can be changed into a prime (1881300133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117581251 + ... + 117581266.

Almost surely, 2^1881300136 is an apocalyptic number.

It is an amenable number.

1881300136 is a deficient number, since it is larger than the sum of its proper divisors (1646137634).

1881300136 is a wasteful number, since it uses less digits than its factorization.

1881300136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235162523 (or 235162519 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1881300136 is about 43373.9568865927. The cubic root of 1881300136 is about 1234.4856017467.

The spelling of 1881300136 in words is "one billion, eight hundred eighty-one million, three hundred thousand, one hundred thirty-six".