1145349974 has 4 divisors (see below), whose sum is σ = 1718024964. Its totient is φ = 572674986.

The previous prime is 1145349967. The next prime is 1145349977. The reversal of 1145349974 is 4799435411.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145349977) 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 as a sum of consecutive naturals, namely, 286337492 + ... + 286337495.

It is an arithmetic number, because the mean of its divisors is an integer number (429506241).

Almost surely, 2^1145349974 is an apocalyptic number.

1145349974 is a deficient number, since it is larger than the sum of its proper divisors (572674990).

1145349974 is an equidigital number, since it uses as much as digits as its factorization.

1145349974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572674989.

The product of its digits is 544320, while the sum is 47.

The square root of 1145349974 is about 33843.0195756821. The cubic root of 1145349974 is about 1046.2755343872.

The spelling of 1145349974 in words is "one billion, one hundred forty-five million, three hundred forty-nine thousand, nine hundred seventy-four".