1145052305 has 16 divisors (see below), whose sum is σ = 1437537024. Its totient is φ = 874677120.

The previous prime is 1145052281. The next prime is 1145052317. The reversal of 1145052305 is 5032505411.

It is not a de Polignac number, because 1145052305 - 2¹⁴ = 1145035921 is a prime.

It is a super-2 number, since 2×1145052305² = 2622289562371626050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49787 + ... + 69056.

It is an arithmetic number, because the mean of its divisors is an integer number (89846064).

Almost surely, 2^1145052305 is an apocalyptic number.

It is an amenable number.

1145052305 is a deficient number, since it is larger than the sum of its proper divisors (292484719).

1145052305 is a wasteful number, since it uses less digits than its factorization.

1145052305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118936.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1145052305 is about 33838.6214997006. The cubic root of 1145052305 is about 1046.1848864677.

Adding to 1145052305 its reverse (5032505411), we get a palindrome (6177557716).

The spelling of 1145052305 in words is "one billion, one hundred forty-five million, fifty-two thousand, three hundred five".