2147629129 has 4 divisors (see below), whose sum is σ = 2216907520. Its totient is φ = 2078350740.

The previous prime is 2147629123. The next prime is 2147629153. The reversal of 2147629129 is 9219267412.

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.

It is a cyclic number.

It is not a de Polignac number, because 2147629129 - 2⁹ = 2147628617 is a prime.

It is a super-2 number, since 2×2147629129² = 9224621751458597282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147629123) 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, 34639149 + ... + 34639210.

It is an arithmetic number, because the mean of its divisors is an integer number (554226880).

Almost surely, 2^2147629129 is an apocalyptic number.

It is an amenable number.

2147629129 is a deficient number, since it is larger than the sum of its proper divisors (69278391).

2147629129 is an equidigital number, since it uses as much as digits as its factorization.

2147629129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69278390.

The product of its digits is 108864, while the sum is 43.

The square root of 2147629129 is about 46342.5196660691. The cubic root of 2147629129 is about 1290.1882883225.

It can be divided in two parts, 21476 and 29129, that added together give a palindrome (50605).

The spelling of 2147629129 in words is "two billion, one hundred forty-seven million, six hundred twenty-nine thousand, one hundred twenty-nine".