481315531 has 2 divisors, whose sum is σ = 481315532. Its totient is φ = 481315530.

The previous prime is 481315519. The next prime is 481315537. The reversal of 481315531 is 135513184.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 481315531 - 2¹³ = 481307339 is a prime.

It is a super-2 number, since 2×481315531² = 463329280763623922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 481315493 and 481315502.

It is not a weakly prime, because it can be changed into another prime (481315537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240657765 + 240657766.

It is an arithmetic number, because the mean of its divisors is an integer number (240657766).

Almost surely, 2^481315531 is an apocalyptic number.

481315531 is a deficient number, since it is larger than the sum of its proper divisors (1).

481315531 is an equidigital number, since it uses as much as digits as its factorization.

481315531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The square root of 481315531 is about 21938.9045077461. The cubic root of 481315531 is about 783.6881715566.

The spelling of 481315531 in words is "four hundred eighty-one million, three hundred fifteen thousand, five hundred thirty-one".