161270738 has 8 divisors (see below), whose sum is σ = 256135932. Its totient is φ = 75892096.

The previous prime is 161270737. The next prime is 161270801. The reversal of 161270738 is 837072161.

161270738 is digitally balanced in base 3, 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 124389409 + 36881329 = 11153^2 + 6073^2 .

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 = 161270698 and 161270707.

It is not an unprimeable number, because it can be changed into a prime (161270737) 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, 2371595 + ... + 2371662.

Almost surely, 2^161270738 is an apocalyptic number.

161270738 is a deficient number, since it is larger than the sum of its proper divisors (94865194).

161270738 is a wasteful number, since it uses less digits than its factorization.

161270738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743276.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 161270738 is about 12699.2416309006. The cubic root of 161270738 is about 544.3169491857.

The spelling of 161270738 in words is "one hundred sixty-one million, two hundred seventy thousand, seven hundred thirty-eight".