1194854149545 has 32 divisors (see below), whose sum is σ = 2279870779392. Its totient is φ = 522470384832.

The previous prime is 1194854149537. The next prime is 1194854149549. The reversal of 1194854149545 is 5459414584911.

It is a happy number.

It is not a de Polignac number, because 1194854149545 - 2³ = 1194854149537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1194854149549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247379397 + ... + 247384226.

It is an arithmetic number, because the mean of its divisors is an integer number (71245961856).

Almost surely, 2^{1194854149545} is an apocalyptic number.

1194854149545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1194854149545 is a deficient number, since it is larger than the sum of its proper divisors (1085016629847).

1194854149545 is a wasteful number, since it uses less digits than its factorization.

1194854149545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494763661.

The product of its digits is 20736000, while the sum is 60.

The spelling of 1194854149545 in words is "one trillion, one hundred ninety-four billion, eight hundred fifty-four million, one hundred forty-nine thousand, five hundred forty-five".