1452981543187 has 2 divisors, whose sum is σ = 1452981543188. Its totient is φ = 1452981543186.

The previous prime is 1452981543127. The next prime is 1452981543241. The reversal of 1452981543187 is 7813451892541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1452981543187 - 2⁷ = 1452981543059 is a prime.

It is a super-2 number, since 2×1452981543187² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1452981543127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726490771593 + 726490771594.

It is an arithmetic number, because the mean of its divisors is an integer number (726490771594).

Almost surely, 2^{1452981543187} is an apocalyptic number.

1452981543187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452981543187 is an equidigital number, since it uses as much as digits as its factorization.

1452981543187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 58.

The spelling of 1452981543187 in words is "one trillion, four hundred fifty-two billion, nine hundred eighty-one million, five hundred forty-three thousand, one hundred eighty-seven".