1144890146402 has 6 divisors (see below), whose sum is σ = 1717337489409. Its totient is φ = 572444316600.

The previous prime is 1144890146401. The next prime is 1144890146453. The reversal of 1144890146402 is 2046410984411.

It can be written as a sum of positive squares in 2 ways, for example, as 996325381921 + 148564764481 = 998161^2 + 385441^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=756601.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144890146401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1134902 + ... + 1891502.

Almost surely, 2^{1144890146402} is an apocalyptic number.

1144890146402 is a deficient number, since it is larger than the sum of its proper divisors (572447343007).

1144890146402 is an frugal number, since it uses more digits than its factorization.

1144890146402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513204 (or 756603 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 1144890146402 in words is "one trillion, one hundred forty-four billion, eight hundred ninety million, one hundred forty-six thousand, four hundred two".