270390545 has 8 divisors (see below), whose sum is σ = 324780840. Its totient is φ = 216104320.

The previous prime is 270390541. The next prime is 270390583. The reversal of 270390545 is 545093072.

It can be written as a sum of positive squares in 4 ways, for example, as 11566801 + 258823744 = 3401^2 + 16088^2 .

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

It is not a de Polignac number, because 270390545 - 2² = 270390541 is a prime.

It is a super-2 number, since 2×270390545² = 146222093650794050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (270390541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20180 + ... + 30789.

It is an arithmetic number, because the mean of its divisors is an integer number (40597605).

Almost surely, 2^270390545 is an apocalyptic number.

It is an amenable number.

270390545 is a deficient number, since it is larger than the sum of its proper divisors (54390295).

270390545 is a wasteful number, since it uses less digits than its factorization.

270390545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52035.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 270390545 is about 16443.5563367539. The cubic root of 270390545 is about 646.6418878745.

The spelling of 270390545 in words is "two hundred seventy million, three hundred ninety thousand, five hundred forty-five".