1316551461 has 8 divisors (see below), whose sum is σ = 1757166624. Its totient is φ = 876818640.

The previous prime is 1316551421. The next prime is 1316551517. The reversal of 1316551461 is 1641556131.

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

It is not a de Polignac number, because 1316551461 - 2²³ = 1308162853 is a prime.

It is a super-2 number, since 2×1316551461² = 3466615498922469042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316551421) 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, 217095 + ... + 223076.

It is an arithmetic number, because the mean of its divisors is an integer number (219645828).

Almost surely, 2^1316551461 is an apocalyptic number.

It is an amenable number.

1316551461 is a deficient number, since it is larger than the sum of its proper divisors (440615163).

1316551461 is an equidigital number, since it uses as much as digits as its factorization.

1316551461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441171.

The product of its digits is 10800, while the sum is 33.

The square root of 1316551461 is about 36284.3142556119. The cubic root of 1316551461 is about 1096.0051960988.

The spelling of 1316551461 in words is "one billion, three hundred sixteen million, five hundred fifty-one thousand, four hundred sixty-one".