1145012055 has 16 divisors (see below), whose sum is σ = 1998566784. Its totient is φ = 555157280.

The previous prime is 1145012039. The next prime is 1145012069. The reversal of 1145012055 is 5502105411.

It is not a de Polignac number, because 1145012055 - 2⁴ = 1145012039 is a prime.

It is a super-2 number, since 2×1145012055² = 2622105212190646050, 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 15 ways as a sum of consecutive naturals, for example, 3469569 + ... + 3469898.

It is an arithmetic number, because the mean of its divisors is an integer number (124910424).

Almost surely, 2^1145012055 is an apocalyptic number.

1145012055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145012055 is a deficient number, since it is larger than the sum of its proper divisors (853554729).

1145012055 is a wasteful number, since it uses less digits than its factorization.

1145012055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939486.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1145012055 is about 33838.0267598452. The cubic root of 1145012055 is about 1046.1726280946.

Adding to 1145012055 its reverse (5502105411), we get a palindrome (6647117466).

The spelling of 1145012055 in words is "one billion, one hundred forty-five million, twelve thousand, fifty-five".