1145646442 has 8 divisors (see below), whose sum is σ = 1720987776. Its totient is φ = 571983852.

The previous prime is 1145646431. The next prime is 1145646449. The reversal of 1145646442 is 2446465411.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1145646449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417978 + ... + 420709.

It is an arithmetic number, because the mean of its divisors is an integer number (215123472).

Almost surely, 2^1145646442 is an apocalyptic number.

1145646442 is a deficient number, since it is larger than the sum of its proper divisors (575341334).

1145646442 is an equidigital number, since it uses as much as digits as its factorization.

1145646442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839372.

The product of its digits is 92160, while the sum is 37.

The square root of 1145646442 is about 33847.3993387971. The cubic root of 1145646442 is about 1046.3658009614.

The spelling of 1145646442 in words is "one billion, one hundred forty-five million, six hundred forty-six thousand, four hundred forty-two".