1331451401 has 16 divisors (see below), whose sum is σ = 1567319424. Its totient is φ = 1107177984.

The previous prime is 1331451383. The next prime is 1331451431. The reversal of 1331451401 is 1041541331.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331451401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331451431) 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, 84146 + ... + 98708.

It is an arithmetic number, because the mean of its divisors is an integer number (97957464).

Almost surely, 2^1331451401 is an apocalyptic number.

It is an amenable number.

1331451401 is a deficient number, since it is larger than the sum of its proper divisors (235868023).

1331451401 is a wasteful number, since it uses less digits than its factorization.

1331451401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14960.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1331451401 is about 36489.0586477645. The cubic root of 1331451401 is about 1100.1243388374.

Adding to 1331451401 its reverse (1041541331), we get a palindrome (2372992732).

The spelling of 1331451401 in words is "one billion, three hundred thirty-one million, four hundred fifty-one thousand, four hundred one".