2156060451 has 8 divisors (see below), whose sum is σ = 2881609920. Its totient is φ = 1433942312.

The previous prime is 2156060443. The next prime is 2156060471. The reversal of 2156060451 is 1540606512.

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 2156060451 - 2³ = 2156060443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2156060471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856365 + ... + 858878.

It is an arithmetic number, because the mean of its divisors is an integer number (360201240).

Almost surely, 2^2156060451 is an apocalyptic number.

2156060451 is a deficient number, since it is larger than the sum of its proper divisors (725549469).

2156060451 is a wasteful number, since it uses less digits than its factorization.

2156060451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715665.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2156060451 is about 46433.3980126374. The cubic root of 2156060451 is about 1291.8744560300.

Adding to 2156060451 its reverse (1540606512), we get a palindrome (3696666963).

The spelling of 2156060451 in words is "two billion, one hundred fifty-six million, sixty thousand, four hundred fifty-one".