1047129 has 4 divisors (see below), whose sum is σ = 1396176. Its totient is φ = 698084.

The previous prime is 1047127. The next prime is 1047131. The reversal of 1047129 is 9217401.

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: 9217401 = 3 ⋅3072467.

It is an interprime number because it is at equal distance from previous prime (1047127) and next prime (1047131).

It is a cyclic number.

It is not a de Polignac number, because 1047129 - 2¹ = 1047127 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1047099 and 1047108.

It is not an unprimeable number, because it can be changed into a prime (1047127) 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, 174519 + ... + 174524.

It is an arithmetic number, because the mean of its divisors is an integer number (349044).

2^1047129 is an apocalyptic number.

It is an amenable number.

1047129 is a deficient number, since it is larger than the sum of its proper divisors (349047).

1047129 is an equidigital number, since it uses as much as digits as its factorization.

1047129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349046.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1047129 is about 1023.2932131115. The cubic root of 1047129 is about 101.5469138528.

It can be divided in two parts, 1047 and 129, that added together give a triangular number (1176 = T₄₈).

The spelling of 1047129 in words is "one million, forty-seven thousand, one hundred twenty-nine".