773180138 has 4 divisors (see below), whose sum is σ = 1159770210. Its totient is φ = 386590068.

The previous prime is 773180117. The next prime is 773180141. The reversal of 773180138 is 831081377.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 718079209 + 55100929 = 26797^2 + 7423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193295033 + ... + 193295036.

Almost surely, 2^773180138 is an apocalyptic number.

773180138 is a deficient number, since it is larger than the sum of its proper divisors (386590072).

773180138 is a wasteful number, since it uses less digits than its factorization.

773180138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386590071.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 773180138 is about 27806.1169169663. The cubic root of 773180138 is about 917.8257327305.

The spelling of 773180138 in words is "seven hundred seventy-three million, one hundred eighty thousand, one hundred thirty-eight".