1138167251 has 8 divisors (see below), whose sum is σ = 1238356224. Its totient is φ = 1039783680.

The previous prime is 1138167211. The next prime is 1138167271. The reversal of 1138167251 is 1527618311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1138167251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138167211) 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, 450035 + ... + 452556.

It is an arithmetic number, because the mean of its divisors is an integer number (154794528).

Almost surely, 2^1138167251 is an apocalyptic number.

1138167251 is a deficient number, since it is larger than the sum of its proper divisors (100188973).

1138167251 is an equidigital number, since it uses as much as digits as its factorization.

1138167251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902701.

The product of its digits is 10080, while the sum is 35.

The square root of 1138167251 is about 33736.7344448155. The cubic root of 1138167251 is about 1044.0838107312.

The spelling of 1138167251 in words is "one billion, one hundred thirty-eight million, one hundred sixty-seven thousand, two hundred fifty-one".