2151540041 has 8 divisors (see below), whose sum is σ = 2471260800. Its totient is φ = 1834908768.

The previous prime is 2151539989. The next prime is 2151540049. The reversal of 2151540041 is 1400451512.

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

It is not a de Polignac number, because 2151540041 - 2¹⁴ = 2151523657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2151539989 and 2151540016.

It is not an unprimeable number, because it can be changed into a prime (2151540049) 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, 770876 + ... + 773661.

It is an arithmetic number, because the mean of its divisors is an integer number (308907600).

Almost surely, 2^2151540041 is an apocalyptic number.

It is an amenable number.

2151540041 is a deficient number, since it is larger than the sum of its proper divisors (319720759).

2151540041 is a wasteful number, since it uses less digits than its factorization.

2151540041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544743.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2151540041 is about 46384.6961938957. The cubic root of 2151540041 is about 1290.9709735970.

Adding to 2151540041 its reverse (1400451512), we get a palindrome (3551991553).

The spelling of 2151540041 in words is "two billion, one hundred fifty-one million, five hundred forty thousand, forty-one".