1331455247451 has 16 divisors (see below), whose sum is σ = 2254315763200. Its totient is φ = 760831569864.

The previous prime is 1331455247387. The next prime is 1331455247497. The reversal of 1331455247451 is 1547425541331.

1331455247451 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 4 + 5 + 524 + 74 + 51 = 666.

It is not a de Polignac number, because 1331455247451 - 2⁶ = 1331455247387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331455247397 and 1331455247406.

It is not an unprimeable number, because it can be changed into a prime (1331455247851) 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, 3522368191 + ... + 3522368568.

It is an arithmetic number, because the mean of its divisors is an integer number (140894735200).

Almost surely, 2^{1331455247451} is an apocalyptic number.

1331455247451 is a deficient number, since it is larger than the sum of its proper divisors (922860515749).

1331455247451 is an equidigital number, since it uses as much as digits as its factorization.

1331455247451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044736775 (or 7044736769 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 1331455247451 in words is "one trillion, three hundred thirty-one billion, four hundred fifty-five million, two hundred forty-seven thousand, four hundred fifty-one".