1075890949 has 4 divisors (see below), whose sum is σ = 1229589664. Its totient is φ = 922192236.

The previous prime is 1075890943. The next prime is 1075890953. The reversal of 1075890949 is 9490985701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1075890949 - 2⁷ = 1075890821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1075890896 and 1075890905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075890943) 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, 76849347 + ... + 76849360.

It is an arithmetic number, because the mean of its divisors is an integer number (307397416).

Almost surely, 2^1075890949 is an apocalyptic number.

It is an amenable number.

1075890949 is a deficient number, since it is larger than the sum of its proper divisors (153698715).

1075890949 is an equidigital number, since it uses as much as digits as its factorization.

1075890949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153698714.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 1075890949 is about 32800.7766523904. The cubic root of 1075890949 is about 1024.6827331375.

The spelling of 1075890949 in words is "one billion, seventy-five million, eight hundred ninety thousand, nine hundred forty-nine".