1145394974 has 8 divisors (see below), whose sum is σ = 1808518440. Its totient is φ = 542555496.

The previous prime is 1145394923. The next prime is 1145394979. The reversal of 1145394974 is 4794935411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145394979) 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, 15070949 + ... + 15071024.

It is an arithmetic number, because the mean of its divisors is an integer number (226064805).

Almost surely, 2^1145394974 is an apocalyptic number.

1145394974 is a deficient number, since it is larger than the sum of its proper divisors (663123466).

1145394974 is a wasteful number, since it uses less digits than its factorization.

1145394974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30141994.

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

The square root of 1145394974 is about 33843.6844034452. The cubic root of 1145394974 is about 1046.2892366859.

The spelling of 1145394974 in words is "one billion, one hundred forty-five million, three hundred ninety-four thousand, nine hundred seventy-four".