1145121289646 has 8 divisors (see below), whose sum is σ = 1721267910720. Its totient is φ = 571365319408.

The previous prime is 1145121289619. The next prime is 1145121289649. The reversal of 1145121289646 is 6469821215411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1145121289646² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145121289594 and 1145121289603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145121289649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597661511 + ... + 597663426.

It is an arithmetic number, because the mean of its divisors is an integer number (215158488840).

Almost surely, 2^{1145121289646} is an apocalyptic number.

1145121289646 is a deficient number, since it is larger than the sum of its proper divisors (576146621074).

1145121289646 is a wasteful number, since it uses less digits than its factorization.

1145121289646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195325418.

The product of its digits is 829440, while the sum is 50.

The spelling of 1145121289646 in words is "one trillion, one hundred forty-five billion, one hundred twenty-one million, two hundred eighty-nine thousand, six hundred forty-six".