270661613 has 4 divisors (see below), whose sum is σ = 271668060. Its totient is φ = 269655168.

The previous prime is 270661577. The next prime is 270661621. The reversal of 270661613 is 316166072.

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

It can be written as a sum of positive squares in 2 ways, for example, as 138250564 + 132411049 = 11758^2 + 11507^2 .

It is a cyclic number.

It is not a de Polignac number, because 270661613 - 2⁸ = 270661357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 270661613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270661693) 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, 502820 + ... + 503357.

It is an arithmetic number, because the mean of its divisors is an integer number (67917015).

Almost surely, 2^270661613 is an apocalyptic number.

It is an amenable number.

270661613 is a deficient number, since it is larger than the sum of its proper divisors (1006447).

270661613 is a wasteful number, since it uses less digits than its factorization.

270661613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006446.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 270661613 is about 16451.7966496064. The cubic root of 270661613 is about 646.8579030480.

The spelling of 270661613 in words is "two hundred seventy million, six hundred sixty-one thousand, six hundred thirteen".