2154423613 has 8 divisors (see below), whose sum is σ = 2187285408. Its totient is φ = 2121726384.

The previous prime is 2154423589. The next prime is 2154423619. The reversal of 2154423613 is 3163244512.

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 2154423613 - 2⁹ = 2154423101 is a prime.

It is a super-2 number, since 2×2154423613² = 9283082208503947538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154423619) 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, 14631 + ... + 67252.

It is an arithmetic number, because the mean of its divisors is an integer number (273410676).

Almost surely, 2^2154423613 is an apocalyptic number.

It is an amenable number.

2154423613 is a deficient number, since it is larger than the sum of its proper divisors (32861795).

2154423613 is an equidigital number, since it uses as much as digits as its factorization.

2154423613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82283.

The product of its digits is 17280, while the sum is 31.

The square root of 2154423613 is about 46415.7690122656. The cubic root of 2154423613 is about 1291.5474515090.

The spelling of 2154423613 in words is "two billion, one hundred fifty-four million, four hundred twenty-three thousand, six hundred thirteen".