270409157 has 8 divisors (see below), whose sum is σ = 291010392. Its totient is φ = 250329600.

The previous prime is 270409099. The next prime is 270409169. The reversal of 270409157 is 751904072.

It can be written as a sum of positive squares in 4 ways, for example, as 2563201 + 267845956 = 1601^2 + 16366^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270409157 is a prime.

It is a super-2 number, since 2×270409157² = 146242224378901298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270400157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129344 + ... + 131417.

It is an arithmetic number, because the mean of its divisors is an integer number (36376299).

Almost surely, 2^270409157 is an apocalyptic number.

It is an amenable number.

270409157 is a deficient number, since it is larger than the sum of its proper divisors (20601235).

270409157 is a wasteful number, since it uses less digits than its factorization.

270409157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260839.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 270409157 is about 16444.1222629850. The cubic root of 270409157 is about 646.6567244666.

The spelling of 270409157 in words is "two hundred seventy million, four hundred nine thousand, one hundred fifty-seven".