1601944031 has 2 divisors, whose sum is σ = 1601944032. Its totient is φ = 1601944030.

The previous prime is 1601943977. The next prime is 1601944033. The reversal of 1601944031 is 1304491061.

It is a strong prime.

It is an emirp because it is prime and its reverse (1304491061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601944031 - 2¹⁴ = 1601927647 is a prime.

It is a super-2 number, since 2×1601944031² = 5132449356913057922, which contains 22 as substring.

Together with 1601944033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1601943985 and 1601944003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601944033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800972015 + 800972016.

It is an arithmetic number, because the mean of its divisors is an integer number (800972016).

Almost surely, 2^1601944031 is an apocalyptic number.

1601944031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601944031 is an equidigital number, since it uses as much as digits as its factorization.

1601944031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1601944031 is about 40024.2930106204. The cubic root of 1601944031 is about 1170.0806019909.

The spelling of 1601944031 in words is "one billion, six hundred one million, nine hundred forty-four thousand, thirty-one".