156134729 has 4 divisors (see below), whose sum is σ = 156633876. Its totient is φ = 155635584.

The previous prime is 156134711. The next prime is 156134743. The reversal of 156134729 is 927431651.

156134729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69272329 + 86862400 = 8323^2 + 9320^2 .

It is a cyclic number.

It is not a de Polignac number, because 156134729 - 2²⁴ = 139357513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156134692 and 156134701.

It is not an unprimeable number, because it can be changed into a prime (156130729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249104 + ... + 249729.

It is an arithmetic number, because the mean of its divisors is an integer number (39158469).

Almost surely, 2^156134729 is an apocalyptic number.

It is an amenable number.

156134729 is a deficient number, since it is larger than the sum of its proper divisors (499147).

156134729 is an equidigital number, since it uses as much as digits as its factorization.

156134729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499146.

The product of its digits is 45360, while the sum is 38.

The square root of 156134729 is about 12495.3883092924. The cubic root of 156134729 is about 538.4761898750.

The spelling of 156134729 in words is "one hundred fifty-six million, one hundred thirty-four thousand, seven hundred twenty-nine".