315533061 has 6 divisors (see below), whose sum is σ = 455769990. Its totient is φ = 210355368.

The previous prime is 315533041. The next prime is 315533069. The reversal of 315533061 is 160335513.

It can be written as a sum of positive squares in only one way, i.e., 313502436 + 2030625 = 17706^2 + 1425^2 .

It is not a de Polignac number, because 315533061 - 2¹⁰ = 315532037 is a prime.

It is a super-2 number, since 2×315533061² = 199122225168059442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315533069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17529606 + ... + 17529623.

It is an arithmetic number, because the mean of its divisors is an integer number (75961665).

Almost surely, 2^315533061 is an apocalyptic number.

It is an amenable number.

315533061 is a deficient number, since it is larger than the sum of its proper divisors (140236929).

315533061 is a wasteful number, since it uses less digits than its factorization.

315533061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35059235 (or 35059232 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 315533061 is about 17763.2502937948. The cubic root of 315533061 is about 680.7928044135.

Adding to 315533061 its reverse (160335513), we get a palindrome (475868574).

The spelling of 315533061 in words is "three hundred fifteen million, five hundred thirty-three thousand, sixty-one".