1331916047 has 16 divisors (see below), whose sum is σ = 1705454592. Its totient is φ = 1009804320.

The previous prime is 1331916007. The next prime is 1331916059. The reversal of 1331916047 is 7406191331.

It is a happy number.

It is not a de Polignac number, because 1331916047 - 2¹⁶ = 1331850511 is a prime.

It is a super-2 number, since 2×1331916047² = 3548000712512212418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331915998 and 1331916016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331916007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230903 + ... + 236600.

It is an arithmetic number, because the mean of its divisors is an integer number (106590912).

Almost surely, 2^1331916047 is an apocalyptic number.

1331916047 is a deficient number, since it is larger than the sum of its proper divisors (373538545).

1331916047 is a wasteful number, since it uses less digits than its factorization.

1331916047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467558.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1331916047 is about 36495.4250146508. The cubic root of 1331916047 is about 1100.2522966741.

The spelling of 1331916047 in words is "one billion, three hundred thirty-one million, nine hundred sixteen thousand, forty-seven".