858537129 has 16 divisors (see below), whose sum is σ = 1163202560. Its totient is φ = 563135760.

The previous prime is 858537107. The next prime is 858537131. The reversal of 858537129 is 921735858.

858537129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 858537129 - 2¹² = 858533033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (858537929) 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, 206784 + ... + 210894.

It is an arithmetic number, because the mean of its divisors is an integer number (72700160).

Almost surely, 2^858537129 is an apocalyptic number.

It is an amenable number.

858537129 is a deficient number, since it is larger than the sum of its proper divisors (304665431).

858537129 is a wasteful number, since it uses less digits than its factorization.

858537129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220.

The product of its digits is 604800, while the sum is 48.

The square root of 858537129 is about 29300.8042381092. The cubic root of 858537129 is about 950.4290320686.

The spelling of 858537129 in words is "eight hundred fifty-eight million, five hundred thirty-seven thousand, one hundred twenty-nine".