1145672712 has 36 divisors (see below), whose sum is σ = 3103641645. Its totient is φ = 381795168.

The previous prime is 1145672701. The next prime is 1145672729. The reversal of 1145672712 is 2172765411.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1144739556 + 933156 = 33834^2 + 966^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 285214 + ... + 289202.

Almost surely, 2^1145672712 is an apocalyptic number.

1145672712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145672712 is an abundant number, since it is smaller than the sum of its proper divisors (1957968933).

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

1145672712 is an frugal number, since it uses more digits than its factorization.

1145672712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7990 (or 3994 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 1145672712 is about 33847.7874018377. The cubic root of 1145672712 is about 1046.3737987225.

The spelling of 1145672712 in words is "one billion, one hundred forty-five million, six hundred seventy-two thousand, seven hundred twelve".