1601286969 has 4 divisors (see below), whose sum is σ = 2135049296. Its totient is φ = 1067524644.

The previous prime is 1601286917. The next prime is 1601286977. The reversal of 1601286969 is 9696821061.

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 not a de Polignac number, because 1601286969 - 2¹² = 1601282873 is a prime.

It is a super-2 number, since 2×1601286969² = 5128239914178413922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1601286469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266881159 + ... + 266881164.

It is an arithmetic number, because the mean of its divisors is an integer number (533762324).

Almost surely, 2^1601286969 is an apocalyptic number.

It is an amenable number.

1601286969 is a deficient number, since it is larger than the sum of its proper divisors (533762327).

1601286969 is an equidigital number, since it uses as much as digits as its factorization.

1601286969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533762326.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1601286969 is about 40016.0838788605. The cubic root of 1601286969 is about 1169.9206045912.

The spelling of 1601286969 in words is "one billion, six hundred one million, two hundred eighty-six thousand, nine hundred sixty-nine".