1145502158 has 4 divisors (see below), whose sum is σ = 1718253240. Its totient is φ = 572751078.

The previous prime is 1145502151. The next prime is 1145502217. The reversal of 1145502158 is 8512055411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8512055411 = 43 ⋅197954777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145502151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286375538 + ... + 286375541.

It is an arithmetic number, because the mean of its divisors is an integer number (429563310).

Almost surely, 2^1145502158 is an apocalyptic number.

1145502158 is a deficient number, since it is larger than the sum of its proper divisors (572751082).

1145502158 is an equidigital number, since it uses as much as digits as its factorization.

1145502158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572751081.

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 1145502158 is about 33845.2678819359. The cubic root of 1145502158 is about 1046.3218722891.

Adding to 1145502158 its reverse (8512055411), we get a palindrome (9657557569).

The spelling of 1145502158 in words is "one billion, one hundred forty-five million, five hundred two thousand, one hundred fifty-eight".