1145025012 has 12 divisors (see below), whose sum is σ = 2671725056. Its totient is φ = 381675000.

The previous prime is 1145024971. The next prime is 1145025017. The reversal of 1145025012 is 2105205411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1145025012² = 2622164556211200288, 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 1145025012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145025017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47709364 + ... + 47709387.

Almost surely, 2^1145025012 is an apocalyptic number.

1145025012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145025012 is an abundant number, since it is smaller than the sum of its proper divisors (1526700044).

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

1145025012 is a wasteful number, since it uses less digits than its factorization.

1145025012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95418758 (or 95418756 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1145025012 is about 33838.2182155030. The cubic root of 1145025012 is about 1046.1765742561.

The spelling of 1145025012 in words is "one billion, one hundred forty-five million, twenty-five thousand, twelve".