1138607273 has 8 divisors (see below), whose sum is σ = 1162770816. Its totient is φ = 1114621200.

The previous prime is 1138607237. The next prime is 1138607293. The reversal of 1138607273 is 3727068311.

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

It is a cyclic number.

It is not a de Polignac number, because 1138607273 - 2⁶ = 1138607209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138607293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31361 + ... + 57102.

It is an arithmetic number, because the mean of its divisors is an integer number (145346352).

Almost surely, 2^1138607273 is an apocalyptic number.

It is an amenable number.

1138607273 is a deficient number, since it is larger than the sum of its proper divisors (24163543).

1138607273 is an equidigital number, since it uses as much as digits as its factorization.

1138607273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88735.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1138607273 is about 33743.2552223404. The cubic root of 1138607273 is about 1044.2183429962.

It can be divided in two parts, 1138607 and 273, that multiplied together give a triangular number (310839711 = T₂₄₉₃₃).

The spelling of 1138607273 in words is "one billion, one hundred thirty-eight million, six hundred seven thousand, two hundred seventy-three".