1154244253142 has 4 divisors (see below), whose sum is σ = 1731366379716. Its totient is φ = 577122126570.

The previous prime is 1154244253133. The next prime is 1154244253163. The reversal of 1154244253142 is 2413524424511.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1154244253142² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1154244253096 and 1154244253105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288561063284 + ... + 288561063287.

It is an arithmetic number, because the mean of its divisors is an integer number (432841594929).

Almost surely, 2^{1154244253142} is an apocalyptic number.

1154244253142 is a deficient number, since it is larger than the sum of its proper divisors (577122126574).

1154244253142 is an equidigital number, since it uses as much as digits as its factorization.

1154244253142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577122126573.

The product of its digits is 153600, while the sum is 38.

Adding to 1154244253142 its reverse (2413524424511), we get a palindrome (3567768677653).

The spelling of 1154244253142 in words is "one trillion, one hundred fifty-four billion, two hundred forty-four million, two hundred fifty-three thousand, one hundred forty-two".