613034521 has 6 divisors (see below), whose sum is σ = 673831466. Its totient is φ = 557304000.

The previous prime is 613034507. The next prime is 613034561. The reversal of 613034521 is 125430316.

It can be written as a sum of positive squares in only one way, i.e., 545876496 + 67158025 = 23364^2 + 8195^2 .

It is not a de Polignac number, because 613034521 - 2²³ = 604645913 is a prime.

It is a super-2 number, since 2×613034521² = 751622647875398882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613034561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2533080 + ... + 2533321.

Almost surely, 2^613034521 is an apocalyptic number.

It is an amenable number.

613034521 is a deficient number, since it is larger than the sum of its proper divisors (60796945).

613034521 is a wasteful number, since it uses less digits than its factorization.

613034521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066423 (or 5066412 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 613034521 is about 24759.5339414941. The cubic root of 613034521 is about 849.4965974263.

Adding to 613034521 its reverse (125430316), we get a palindrome (738464837).

The spelling of 613034521 in words is "six hundred thirteen million, thirty-four thousand, five hundred twenty-one".