177994138 has 8 divisors (see below), whose sum is σ = 305132832. Its totient is φ = 76283196.

The previous prime is 177994129. The next prime is 177994151. The reversal of 177994138 is 831499771.

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

It is a junction number, because it is equal to n+sod(n) for n = 177994091 and 177994100.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6356920 + ... + 6356947.

It is an arithmetic number, because the mean of its divisors is an integer number (38141604).

Almost surely, 2^177994138 is an apocalyptic number.

177994138 is a deficient number, since it is larger than the sum of its proper divisors (127138694).

177994138 is a wasteful number, since it uses less digits than its factorization.

177994138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713876.

The product of its digits is 381024, while the sum is 49.

The square root of 177994138 is about 13341.4443745795. Note that the first 3 decimals coincide. The cubic root of 177994138 is about 562.5164576584.

The spelling of 177994138 in words is "one hundred seventy-seven million, nine hundred ninety-four thousand, one hundred thirty-eight".