1138254166 has 32 divisors (see below), whose sum is σ = 2055985920. Its totient is φ = 461700000.

The previous prime is 1138254149. The next prime is 1138254203. The reversal of 1138254166 is 6614528311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504541 + ... + 506791.

It is an arithmetic number, because the mean of its divisors is an integer number (64249560).

Almost surely, 2^1138254166 is an apocalyptic number.

1138254166 is a deficient number, since it is larger than the sum of its proper divisors (917731754).

1138254166 is a wasteful number, since it uses less digits than its factorization.

1138254166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180.

The product of its digits is 34560, while the sum is 37.

The square root of 1138254166 is about 33738.0225561606. The cubic root of 1138254166 is about 1044.1103868589.

The spelling of 1138254166 in words is "one billion, one hundred thirty-eight million, two hundred fifty-four thousand, one hundred sixty-six".