2154662741 has 24 divisors (see below), whose sum is σ = 2737056096. Its totient is φ = 1677268320.

The previous prime is 2154662737. The next prime is 2154662761. The reversal of 2154662741 is 1472664512.

It is a happy number.

It is not a de Polignac number, because 2154662741 - 2² = 2154662737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154662695 and 2154662704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154662761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 962075 + ... + 964311.

It is an arithmetic number, because the mean of its divisors is an integer number (114044004).

Almost surely, 2^2154662741 is an apocalyptic number.

It is an amenable number.

2154662741 is a deficient number, since it is larger than the sum of its proper divisors (582393355).

2154662741 is a wasteful number, since it uses less digits than its factorization.

2154662741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4042 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 2154662741 is about 46418.3448757062. The cubic root of 2154662741 is about 1291.5952343949.

The spelling of 2154662741 in words is "two billion, one hundred fifty-four million, six hundred sixty-two thousand, seven hundred forty-one".