1331150455 has 4 divisors (see below), whose sum is σ = 1597380552. Its totient is φ = 1064920360.

The previous prime is 1331150449. The next prime is 1331150531. The reversal of 1331150455 is 5540511331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1331150455 - 2⁹ = 1331149943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133115041 + ... + 133115050.

It is an arithmetic number, because the mean of its divisors is an integer number (399345138).

Almost surely, 2^1331150455 is an apocalyptic number.

1331150455 is a deficient number, since it is larger than the sum of its proper divisors (266230097).

1331150455 is an equidigital number, since it uses as much as digits as its factorization.

1331150455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266230096.

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

The square root of 1331150455 is about 36484.9346306116. The cubic root of 1331150455 is about 1100.0414460968.

Adding to 1331150455 its reverse (5540511331), we get a palindrome (6871661786).

The spelling of 1331150455 in words is "one billion, three hundred thirty-one million, one hundred fifty thousand, four hundred fifty-five".