1145312052 has 48 divisors (see below), whose sum is σ = 2751124992. Its totient is φ = 370631520.

The previous prime is 1145312041. The next prime is 1145312089. The reversal of 1145312052 is 2502135411.

It is a happy number.

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, 79527 + ... + 92817.

It is an arithmetic number, because the mean of its divisors is an integer number (57315104).

Almost surely, 2^1145312052 is an apocalyptic number.

1145312052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145312052 is an abundant number, since it is smaller than the sum of its proper divisors (1605812940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145312052 is a wasteful number, since it uses less digits than its factorization.

1145312052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13508 (or 13506 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1145312052 is about 33842.4593077985. The cubic root of 1145312052 is about 1046.2639870291.

Adding to 1145312052 its reverse (2502135411), we get a palindrome (3647447463).

The spelling of 1145312052 in words is "one billion, one hundred forty-five million, three hundred twelve thousand, fifty-two".