2142154155 has 8 divisors (see below), whose sum is σ = 3427446672. Its totient is φ = 1142482208.

The previous prime is 2142154153. The next prime is 2142154169. The reversal of 2142154155 is 5514512412.

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 2142154155 - 2¹ = 2142154153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142154153) 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, 71405124 + ... + 71405153.

It is an arithmetic number, because the mean of its divisors is an integer number (428430834).

Almost surely, 2^2142154155 is an apocalyptic number.

2142154155 is a deficient number, since it is larger than the sum of its proper divisors (1285292517).

2142154155 is a wasteful number, since it uses less digits than its factorization.

2142154155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142810285.

The product of its digits is 8000, while the sum is 30.

The square root of 2142154155 is about 46283.4112290786. The cubic root of 2142154155 is about 1289.0909917243.

Adding to 2142154155 its reverse (5514512412), we get a palindrome (7656666567).

The spelling of 2142154155 in words is "two billion, one hundred forty-two million, one hundred fifty-four thousand, one hundred fifty-five".