1142898997949 has 2 divisors, whose sum is σ = 1142898997950. Its totient is φ = 1142898997948.

The previous prime is 1142898997931. The next prime is 1142898997951. The reversal of 1142898997949 is 9497998982411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139808193924 + 3090804025 = 1067618^2 + 55595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142898997949 - 2¹² = 1142898993853 is a prime.

Together with 1142898997951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142898993949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571449498974 + 571449498975.

It is an arithmetic number, because the mean of its divisors is an integer number (571449498975).

Almost surely, 2^{1142898997949} is an apocalyptic number.

It is an amenable number.

1142898997949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142898997949 is an equidigital number, since it uses as much as digits as its factorization.

1142898997949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846526464, while the sum is 80.

The spelling of 1142898997949 in words is "one trillion, one hundred forty-two billion, eight hundred ninety-eight million, nine hundred ninety-seven thousand, nine hundred forty-nine".