1531114453397 has 2 divisors, whose sum is σ = 1531114453398. Its totient is φ = 1531114453396.

The previous prime is 1531114453357. The next prime is 1531114453417. The reversal of 1531114453397 is 7933544111351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1272832983601 + 258281469796 = 1128199^2 + 508214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1531114453397 - 2²² = 1531110259093 is a prime.

It is a super-2 number, since 2×1531114453397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1531114453357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765557226698 + 765557226699.

It is an arithmetic number, because the mean of its divisors is an integer number (765557226699).

Almost surely, 2^{1531114453397} is an apocalyptic number.

It is an amenable number.

1531114453397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531114453397 is an equidigital number, since it uses as much as digits as its factorization.

1531114453397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The spelling of 1531114453397 in words is "one trillion, five hundred thirty-one billion, one hundred fourteen million, four hundred fifty-three thousand, three hundred ninety-seven".