767138 has 8 divisors (see below), whose sum is σ = 1154460. Its totient is φ = 382320.

The previous prime is 767131. The next prime is 767147. The reversal of 767138 is 831767.

It is a happy number.

767138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 717409 + 49729 = 847^2 + 223^2 .

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

It is a super-2 number, since 2×767138² = 1177001422088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (767131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728 + ... + 1436.

2⁷⁶⁷¹³⁸ is an apocalyptic number.

767138 is a deficient number, since it is larger than the sum of its proper divisors (387322).

767138 is a wasteful number, since it uses less digits than its factorization.

767138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252.

The product of its digits is 7056, while the sum is 32.

The square root of 767138 is about 875.8641447165. The cubic root of 767138 is about 91.5428646446.

The spelling of 767138 in words is "seven hundred sixty-seven thousand, one hundred thirty-eight".