1145171574 has 32 divisors (see below), whose sum is σ = 2606899680. Its totient is φ = 372412800.

The previous prime is 1145171557. The next prime is 1145171579. The reversal of 1145171574 is 4751715411.

1145171574 is a `hidden beast` number, since 1 + 14 + 5 + 1 + 71 + 574 = 666.

It is a super-2 number, since 2×1145171574² = 2622835867795274952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145171579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256407 + ... + 260834.

It is an arithmetic number, because the mean of its divisors is an integer number (81465615).

Almost surely, 2^1145171574 is an apocalyptic number.

1145171574 is an abundant number, since it is smaller than the sum of its proper divisors (1461728106).

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

1145171574 is a wasteful number, since it uses less digits than its factorization.

1145171574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517293 (or 517287 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 1145171574 is about 33840.3837744196. The cubic root of 1145171574 is about 1046.2212088530.

Adding to 1145171574 its reverse (4751715411), we get a palindrome (5896886985).

The spelling of 1145171574 in words is "one billion, one hundred forty-five million, one hundred seventy-one thousand, five hundred seventy-four".