1868250136 has 8 divisors (see below), whose sum is σ = 3502969020. Its totient is φ = 934125064.

The previous prime is 1868250133. The next prime is 1868250143. The reversal of 1868250136 is 6310528681.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868250133) 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 as a sum of consecutive naturals, namely, 116765626 + ... + 116765641.

Almost surely, 2^1868250136 is an apocalyptic number.

It is an amenable number.

1868250136 is a deficient number, since it is larger than the sum of its proper divisors (1634718884).

1868250136 is a wasteful number, since it uses less digits than its factorization.

1868250136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233531273 (or 233531269 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1868250136 is about 43223.2592014994. The cubic root of 1868250136 is about 1231.6245605736.

It can be divided in two parts, 1868 and 250136, that added together give a square (252004 = 502²).

The spelling of 1868250136 in words is "one billion, eight hundred sixty-eight million, two hundred fifty thousand, one hundred thirty-six".