1138757207 has 6 divisors (see below), whose sum is σ = 1324676808. Its totient is φ = 976077564.

The previous prime is 1138757201. The next prime is 1138757273. The reversal of 1138757207 is 7027578311.

It is not a de Polignac number, because 1138757207 - 2¹⁰ = 1138756183 is a prime.

It is a super-3 number, since 3×1138757207³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138757201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11619923 + ... + 11620020.

It is an arithmetic number, because the mean of its divisors is an integer number (220779468).

Almost surely, 2^1138757207 is an apocalyptic number.

1138757207 is a deficient number, since it is larger than the sum of its proper divisors (185919601).

1138757207 is an equidigital number, since it uses as much as digits as its factorization.

1138757207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23239957 (or 23239950 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 1138757207 is about 33745.4768376445. The cubic root of 1138757207 is about 1044.2641758791.

The spelling of 1138757207 in words is "one billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, two hundred seven".