481215091 has 8 divisors (see below), whose sum is σ = 550104320. Its totient is φ = 412361928.

The previous prime is 481215061. The next prime is 481215127. The reversal of 481215091 is 190512184.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 481215091 - 2²³ = 472826483 is a prime.

It is a super-2 number, since 2×481215091² = 463135927612276562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481215001) 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, 32080 + ... + 44626.

It is an arithmetic number, because the mean of its divisors is an integer number (68763040).

Almost surely, 2^481215091 is an apocalyptic number.

481215091 is a deficient number, since it is larger than the sum of its proper divisors (68889229).

481215091 is a wasteful number, since it uses less digits than its factorization.

481215091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 481215091 is about 21936.6153040983. The cubic root of 481215091 is about 783.6336549171.

The spelling of 481215091 in words is "four hundred eighty-one million, two hundred fifteen thousand, ninety-one".