270561138 has 32 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 88451856.

The previous prime is 270561113. The next prime is 270561143. The reversal of 270561138 is 831165072.

It is a junction number, because it is equal to n+sod(n) for n = 270561099 and 270561108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253995 + ... + 255057.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^270561138 is an apocalyptic number.

270561138 is an abundant number, since it is smaller than the sum of its proper divisors (281016462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

270561138 is a wasteful number, since it uses less digits than its factorization.

270561138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 270561138 is about 16448.7427483075. The cubic root of 270561138 is about 646.7778509478. Note that the first 3 decimals are identical.

The spelling of 270561138 in words is "two hundred seventy million, five hundred sixty-one thousand, one hundred thirty-eight".