1145493045 has 12 divisors (see below), whose sum is σ = 1985521356. Its totient is φ = 610929600.

The previous prime is 1145493029. The next prime is 1145493053. The reversal of 1145493045 is 5403945411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 444408561 + 701084484 = 21081^2 + 26478^2 .

It is not a de Polignac number, because 1145493045 - 2⁴ = 1145493029 is a prime.

It is a super-2 number, since 2×1145493045² = 2624308632286744050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12727656 + ... + 12727745.

It is an arithmetic number, because the mean of its divisors is an integer number (165460113).

Almost surely, 2^1145493045 is an apocalyptic number.

1145493045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145493045 is a deficient number, since it is larger than the sum of its proper divisors (840028311).

1145493045 is a wasteful number, since it uses less digits than its factorization.

1145493045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25455412 (or 25455409 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1145493045 is about 33845.1332542804. The cubic root of 1145493045 is about 1046.3190976234.

The spelling of 1145493045 in words is "one billion, one hundred forty-five million, four hundred ninety-three thousand, forty-five".