2142450155 has 16 divisors (see below), whose sum is σ = 2606086560. Its totient is φ = 1690647552.

The previous prime is 2142450151. The next prime is 2142450179. The reversal of 2142450155 is 5510542412.

It is a cyclic number.

It is not a de Polignac number, because 2142450155 - 2² = 2142450151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142450151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141701 + ... + 156089.

It is an arithmetic number, because the mean of its divisors is an integer number (162880410).

Almost surely, 2^2142450155 is an apocalyptic number.

2142450155 is a deficient number, since it is larger than the sum of its proper divisors (463636405).

2142450155 is a wasteful number, since it uses less digits than its factorization.

2142450155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2142450155 is about 46286.6088085960. The cubic root of 2142450155 is about 1289.1503639469.

Adding to 2142450155 its reverse (5510542412), we get a palindrome (7652992567).

The spelling of 2142450155 in words is "two billion, one hundred forty-two million, four hundred fifty thousand, one hundred fifty-five".