1129570623 has 16 divisors (see below), whose sum is σ = 1714255200. Its totient is φ = 734679360.

The previous prime is 1129570613. The next prime is 1129570633. The reversal of 1129570623 is 3260759211.

1129570623 is a `hidden beast` number, since 1 + 1 + 29 + 5 + 7 + 0 + 623 = 666.

It is an interprime number because it is at equal distance from previous prime (1129570613) and next prime (1129570633).

It is not a de Polignac number, because 1129570623 - 2¹⁶ = 1129505087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129570613) 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 15 ways as a sum of consecutive naturals, for example, 509088 + ... + 511301.

It is an arithmetic number, because the mean of its divisors is an integer number (107140950).

Almost surely, 2^1129570623 is an apocalyptic number.

1129570623 is a deficient number, since it is larger than the sum of its proper divisors (584684577).

1129570623 is a wasteful number, since it uses less digits than its factorization.

1129570623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020439 (or 1020433 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1129570623 is about 33609.0854234387. The cubic root of 1129570623 is about 1041.4484941380.

It can be divided in two parts, 11295 and 70623, that added together give a palindrome (81918).

The spelling of 1129570623 in words is "one billion, one hundred twenty-nine million, five hundred seventy thousand, six hundred twenty-three".