270734138 has 4 divisors (see below), whose sum is σ = 406101210. Its totient is φ = 135367068.

The previous prime is 270734137. The next prime is 270734141. The reversal of 270734138 is 831437072.

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., 165199609 + 105534529 = 12853^2 + 10273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 270734098 and 270734107.

It is not an unprimeable number, because it can be changed into a prime (270734137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67683533 + ... + 67683536.

Almost surely, 2^270734138 is an apocalyptic number.

270734138 is a deficient number, since it is larger than the sum of its proper divisors (135367072).

270734138 is a wasteful number, since it uses less digits than its factorization.

270734138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135367071.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 270734138 is about 16454.0006685304. Note that the first 3 decimals coincide. The cubic root of 270734138 is about 646.9156740526.

The spelling of 270734138 in words is "two hundred seventy million, seven hundred thirty-four thousand, one hundred thirty-eight".