1151415243997 has 2 divisors, whose sum is σ = 1151415243998. Its totient is φ = 1151415243996.

The previous prime is 1151415243961. The next prime is 1151415244039. The reversal of 1151415243997 is 7993425141511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1136769645636 + 14645598361 = 1066194^2 + 121019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151415243997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151415243917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575707621998 + 575707621999.

It is an arithmetic number, because the mean of its divisors is an integer number (575707621999).

Almost surely, 2^{1151415243997} is an apocalyptic number.

It is an amenable number.

1151415243997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151415243997 is an equidigital number, since it uses as much as digits as its factorization.

1151415243997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 52.

The spelling of 1151415243997 in words is "one trillion, one hundred fifty-one billion, four hundred fifteen million, two hundred forty-three thousand, nine hundred ninety-seven".