1613023501 has 8 divisors (see below), whose sum is σ = 1634199680. Its totient is φ = 1591866432.

The previous prime is 1613023499. The next prime is 1613023507. The reversal of 1613023501 is 1053203161.

It is a happy number.

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

It is not a de Polignac number, because 1613023501 - 2¹ = 1613023499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613023507) 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 7 ways as a sum of consecutive naturals, for example, 258646 + ... + 264808.

It is an arithmetic number, because the mean of its divisors is an integer number (204274960).

Almost surely, 2^1613023501 is an apocalyptic number.

It is an amenable number.

1613023501 is a deficient number, since it is larger than the sum of its proper divisors (21176179).

1613023501 is an equidigital number, since it uses as much as digits as its factorization.

1613023501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1613023501 is about 40162.4638312940. The cubic root of 1613023501 is about 1172.7719361434.

Adding to 1613023501 its reverse (1053203161), we get a palindrome (2666226662).

The spelling of 1613023501 in words is "one billion, six hundred thirteen million, twenty-three thousand, five hundred one".