1144164535242 has 16 divisors (see below), whose sum is σ = 2288443221120. Its totient is φ = 381369153312.

The previous prime is 1144164535237. The next prime is 1144164535249. The reversal of 1144164535242 is 2425354614411.

It is a super-2 number, since 2×1144164535242² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144164535194 and 1144164535203.

It is not an unprimeable number, because it can be changed into a prime (1144164535249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4625698 + ... + 4866765.

It is an arithmetic number, because the mean of its divisors is an integer number (143027701320).

Almost surely, 2^{1144164535242} is an apocalyptic number.

1144164535242 is an abundant number, since it is smaller than the sum of its proper divisors (1144278685878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144164535242 is a wasteful number, since it uses less digits than its factorization.

1144164535242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512557.

The product of its digits is 460800, while the sum is 42.

The spelling of 1144164535242 in words is "one trillion, one hundred forty-four billion, one hundred sixty-four million, five hundred thirty-five thousand, two hundred forty-two".