1601229 has 8 divisors (see below), whose sum is σ = 2440000. Its totient is φ = 914976.

The previous prime is 1601227. The next prime is 1601231. The reversal of 1601229 is 9221061.

It is an interprime number because it is at equal distance from previous prime (1601227) and next prime (1601231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1601229 - 2¹ = 1601227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 76249 = 1601229 / (1 + 6 + 0 + 1 + 2 + 2 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38104 + ... + 38145.

It is an arithmetic number, because the mean of its divisors is an integer number (305000).

2^1601229 is an apocalyptic number.

It is an amenable number.

1601229 is a deficient number, since it is larger than the sum of its proper divisors (838771).

1601229 is an equidigital number, since it uses as much as digits as its factorization.

1601229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76259.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1601229 is about 1265.3967757190. The cubic root of 1601229 is about 116.9906486792.

It can be divided in two parts, 1601 and 229, that added together give a triangular number (1830 = T₆₀).

The spelling of 1601229 in words is "one million, six hundred one thousand, two hundred twenty-nine".