1045293481 has 4 divisors (see below), whose sum is σ = 1045365700. Its totient is φ = 1045221264.

The previous prime is 1045293449. The next prime is 1045293503. The reversal of 1045293481 is 1843925401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1843925401 = 7477 ⋅246613.

It can be written as a sum of positive squares in 2 ways, for example, as 85285225 + 960008256 = 9235^2 + 30984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045293481 - 2⁵ = 1045293449 is a prime.

It is a super-2 number, since 2×1045293481² = 2185276922842194722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045293481.

It is not an unprimeable number, because it can be changed into a prime (1045293881) 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, 6066 + ... + 46123.

It is an arithmetic number, because the mean of its divisors is an integer number (261341425).

Almost surely, 2^1045293481 is an apocalyptic number.

It is an amenable number.

1045293481 is a deficient number, since it is larger than the sum of its proper divisors (72219).

1045293481 is an equidigital number, since it uses as much as digits as its factorization.

1045293481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72218.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1045293481 is about 32330.9987627973. The cubic root of 1045293481 is about 1014.8754507563.

The spelling of 1045293481 in words is "one billion, forty-five million, two hundred ninety-three thousand, four hundred eighty-one".