1145131412 has 12 divisors (see below), whose sum is σ = 2028124896. Its totient is φ = 565667160.

The previous prime is 1145131411. The next prime is 1145131417. The reversal of 1145131412 is 2141315411.

It is a super-2 number, since 2×1145131412² = 2622651901498227488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145131411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724264 + ... + 1724927.

It is an arithmetic number, because the mean of its divisors is an integer number (169010408).

Almost surely, 2^1145131412 is an apocalyptic number.

It is an amenable number.

1145131412 is a deficient number, since it is larger than the sum of its proper divisors (882993484).

1145131412 is a wasteful number, since it uses less digits than its factorization.

1145131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449278 (or 3449276 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 1145131412 is about 33839.7903657809. The cubic root of 1145131412 is about 1046.2089781305.

Adding to 1145131412 its reverse (2141315411), we get a palindrome (3286446823).

The spelling of 1145131412 in words is "one billion, one hundred forty-five million, one hundred thirty-one thousand, four hundred twelve".