1145301272 has 8 divisors (see below), whose sum is σ = 2147439900. Its totient is φ = 572650632.

The previous prime is 1145301253. The next prime is 1145301277. The reversal of 1145301272 is 2721035411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145301277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71581322 + ... + 71581337.

Almost surely, 2^1145301272 is an apocalyptic number.

It is an amenable number.

1145301272 is a deficient number, since it is larger than the sum of its proper divisors (1002138628).

1145301272 is a wasteful number, since it uses less digits than its factorization.

1145301272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143162665 (or 143162661 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1145301272 is about 33842.3000400386. The cubic root of 1145301272 is about 1046.2607044416.

Adding to 1145301272 its reverse (2721035411), we get a palindrome (3866336683).

The spelling of 1145301272 in words is "one billion, one hundred forty-five million, three hundred one thousand, two hundred seventy-two".