1601373523 has 8 divisors (see below), whose sum is σ = 1688400720. Its totient is φ = 1514620800.

The previous prime is 1601373509. The next prime is 1601373539. The reversal of 1601373523 is 3253731061.

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

It is a cyclic number.

It is not a de Polignac number, because 1601373523 - 2⁵ = 1601373491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601373503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56578 + ... + 80023.

It is an arithmetic number, because the mean of its divisors is an integer number (211050090).

Almost surely, 2^1601373523 is an apocalyptic number.

1601373523 is a deficient number, since it is larger than the sum of its proper divisors (87027197).

1601373523 is a wasteful number, since it uses less digits than its factorization.

1601373523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137237.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 1601373523 is about 40017.1653543826. The cubic root of 1601373523 is about 1169.9416833621.

The spelling of 1601373523 in words is "one billion, six hundred one million, three hundred seventy-three thousand, five hundred twenty-three".