1145231506 has 8 divisors (see below), whose sum is σ = 1726748604. Its totient is φ = 569648640.

The previous prime is 1145231497. The next prime is 1145231509. The reversal of 1145231506 is 6051325411.

1145231506 = T₃₃₄₈ + T₃₃₄₉ + ... + T₃₅₄₀.

It can be written as a sum of positive squares in 2 ways, for example, as 1145213281 + 18225 = 33841^2 + 135^2 .

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 (1145231509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483075 + ... + 1483846.

Almost surely, 2^1145231506 is an apocalyptic number.

1145231506 is a deficient number, since it is larger than the sum of its proper divisors (581517098).

1145231506 is a wasteful number, since it uses less digits than its factorization.

1145231506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967116.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1145231506 is about 33841.2692728863. The cubic root of 1145231506 is about 1046.2394596948.

Adding to 1145231506 its reverse (6051325411), we get a palindrome (7196556917).

The spelling of 1145231506 in words is "one billion, one hundred forty-five million, two hundred thirty-one thousand, five hundred six".