1145814642 has 48 divisors (see below), whose sum is σ = 2864833920. Its totient is φ = 324193536.

The previous prime is 1145814629. The next prime is 1145814647. The reversal of 1145814642 is 2464185411.

1145814642 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 8 + 1 + 4 + 642 = 666.

1145814642 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1145814597 and 1145814606.

It is not an unprimeable number, because it can be changed into a prime (1145814647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31167 + ... + 57122.

It is an arithmetic number, because the mean of its divisors is an integer number (59684040).

Almost surely, 2^1145814642 is an apocalyptic number.

1145814642 is an abundant number, since it is smaller than the sum of its proper divisors (1719019278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145814642 is a wasteful number, since it uses less digits than its factorization.

1145814642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88407 (or 88404 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 1145814642 is about 33849.8839289000. The cubic root of 1145814642 is about 1046.4170064378.

The spelling of 1145814642 in words is "one billion, one hundred forty-five million, eight hundred fourteen thousand, six hundred forty-two".