2142157541 has 8 divisors (see below), whose sum is σ = 2173301760. Its totient is φ = 2111140512.

The previous prime is 2142157517. The next prime is 2142157553. The reversal of 2142157541 is 1457512412.

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 2142157541 - 2⁶ = 2142157477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142157498 and 2142157507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142157561) 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, 2396 + ... + 65498.

It is an arithmetic number, because the mean of its divisors is an integer number (271662720).

Almost surely, 2^2142157541 is an apocalyptic number.

It is an amenable number.

2142157541 is a deficient number, since it is larger than the sum of its proper divisors (31144219).

2142157541 is an equidigital number, since it uses as much as digits as its factorization.

2142157541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63595.

The product of its digits is 11200, while the sum is 32.

The square root of 2142157541 is about 46283.4478080447. The cubic root of 2142157541 is about 1289.0916709253.

Adding to 2142157541 its reverse (1457512412), we get a palindrome (3599669953).

The spelling of 2142157541 in words is "two billion, one hundred forty-two million, one hundred fifty-seven thousand, five hundred forty-one".