451161613 has 32 divisors (see below), whose sum is σ = 548352000. Its totient is φ = 363061440.

The previous prime is 451161611. The next prime is 451161661. The reversal of 451161613 is 316161154.

It is not a de Polignac number, because 451161613 - 2¹ = 451161611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451161611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1664668 + ... + 1664938.

It is an arithmetic number, because the mean of its divisors is an integer number (17136000).

Almost surely, 2^451161613 is an apocalyptic number.

It is an amenable number.

451161613 is a deficient number, since it is larger than the sum of its proper divisors (97190387).

451161613 is a wasteful number, since it uses less digits than its factorization.

451161613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its digits is 2160, while the sum is 28.

The square root of 451161613 is about 21240.5652702559. The cubic root of 451161613 is about 766.9682399178.

The spelling of 451161613 in words is "four hundred fifty-one million, one hundred sixty-one thousand, six hundred thirteen".