1601129 has 4 divisors (see below), whose sum is σ = 1607760. Its totient is φ = 1594500.

The previous prime is 1601123. The next prime is 1601137. The reversal of 1601129 is 9211061.

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 1601129 - 2⁴ = 1601113 is a prime.

It is a super-2 number, since 2×1601129² = 5127228149282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601129.

It is not an unprimeable number, because it can be changed into a prime (1601123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 3440.

It is an arithmetic number, because the mean of its divisors is an integer number (401940).

2^1601129 is an apocalyptic number.

It is an amenable number.

1601129 is a deficient number, since it is larger than the sum of its proper divisors (6631).

1601129 is an equidigital number, since it uses as much as digits as its factorization.

1601129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1601129 is about 1265.3572618040. The cubic root of 1601129 is about 116.9882131940.

The spelling of 1601129 in words is "one million, six hundred one thousand, one hundred twenty-nine".