1145827906 has 4 divisors (see below), whose sum is σ = 1718741862. Its totient is φ = 572913952.

The previous prime is 1145827873. The next prime is 1145827913. The reversal of 1145827906 is 6097285411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6097285411 = 7 ⋅871040773.

It can be written as a sum of positive squares in only one way, i.e., 1112822881 + 33005025 = 33359^2 + 5745^2 .

It is an unprimeable number.

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, 286456975 + ... + 286456978.

Almost surely, 2^1145827906 is an apocalyptic number.

1145827906 is a deficient number, since it is larger than the sum of its proper divisors (572913956).

1145827906 is an equidigital number, since it uses as much as digits as its factorization.

1145827906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572913955.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1145827906 is about 33850.0798521953. The cubic root of 1145827906 is about 1046.4210442117.

The spelling of 1145827906 in words is "one billion, one hundred forty-five million, eight hundred twenty-seven thousand, nine hundred six".