1331054551 has 8 divisors (see below), whose sum is σ = 1421228160. Its totient is φ = 1243572792.

The previous prime is 1331054531. The next prime is 1331054563. The reversal of 1331054551 is 1554501331.

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 1331054551 - 2¹³ = 1331046359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331054521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671941 + ... + 673918.

It is an arithmetic number, because the mean of its divisors is an integer number (177653520).

Almost surely, 2^1331054551 is an apocalyptic number.

1331054551 is a deficient number, since it is larger than the sum of its proper divisors (90173609).

1331054551 is a wasteful number, since it uses less digits than its factorization.

1331054551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345925.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1331054551 is about 36483.6203110382. The cubic root of 1331054551 is about 1100.0150276184.

Adding to 1331054551 its reverse (1554501331), we get a palindrome (2885555882).

The spelling of 1331054551 in words is "one billion, three hundred thirty-one million, fifty-four thousand, five hundred fifty-one".