1156429 has 2 divisors, whose sum is σ = 1156430. Its totient is φ = 1156428.

The previous prime is 1156427. The next prime is 1156451. The reversal of 1156429 is 9246511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828100 + 328329 = 910^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156429 - 2¹ = 1156427 is a prime.

Together with 1156427, it forms a pair of twin primes.

1156429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1156397 and 1156406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578214 + 578215.

It is an arithmetic number, because the mean of its divisors is an integer number (578215).

2^1156429 is an apocalyptic number.

It is an amenable number.

1156429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156429 is an equidigital number, since it uses as much as digits as its factorization.

1156429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 1156429 is about 1075.3738884686. The cubic root of 1156429 is about 104.9638272980.

The spelling of 1156429 in words is "one million, one hundred fifty-six thousand, four hundred twenty-nine".