1145214012 has 48 divisors (see below), whose sum is σ = 2740953600. Its totient is φ = 371954688.

The previous prime is 1145214011. The next prime is 1145214041. The reversal of 1145214012 is 2104125411.

It is a super-2 number, since 2×1145214012² = 2623030266562272288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145214012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145214011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229213 + ... + 234155.

It is an arithmetic number, because the mean of its divisors is an integer number (57103200).

Almost surely, 2^1145214012 is an apocalyptic number.

1145214012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145214012 is an abundant number, since it is smaller than the sum of its proper divisors (1595739588).

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

1145214012 is a wasteful number, since it uses less digits than its factorization.

1145214012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442 (or 5440 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1145214012 is about 33841.0108005065. The cubic root of 1145214012 is about 1046.2341323858.

Adding to 1145214012 its reverse (2104125411), we get a palindrome (3249339423).

The spelling of 1145214012 in words is "one billion, one hundred forty-five million, two hundred fourteen thousand, twelve".