1157858029 has 4 divisors (see below), whose sum is σ = 1195208320. Its totient is φ = 1120507740.

The previous prime is 1157858027. The next prime is 1157858047. The reversal of 1157858029 is 9208587511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9208587511 = 61 ⋅150960451.

It is a cyclic number.

It is not a de Polignac number, because 1157858029 - 2¹ = 1157858027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157858029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157858027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18675099 + ... + 18675160.

It is an arithmetic number, because the mean of its divisors is an integer number (298802080).

Almost surely, 2^1157858029 is an apocalyptic number.

It is an amenable number.

1157858029 is a deficient number, since it is larger than the sum of its proper divisors (37350291).

1157858029 is an equidigital number, since it uses as much as digits as its factorization.

1157858029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37350290.

The product of its (nonzero) digits is 201600, while the sum is 46.

The square root of 1157858029 is about 34027.3129853064. The cubic root of 1157858029 is about 1050.0704499971.

The spelling of 1157858029 in words is "one billion, one hundred fifty-seven million, eight hundred fifty-eight thousand, twenty-nine".