2142498917 has 16 divisors (see below), whose sum is σ = 2396874480. Its totient is φ = 1901491200.

The previous prime is 2142498907. The next prime is 2142498929. The reversal of 2142498917 is 7198942412.

It can be written as a sum of positive squares in 8 ways, for example, as 60310756 + 2082188161 = 7766^2 + 45631^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142498917 - 2¹² = 2142494821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142498907) 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, 79067 + ... + 102647.

It is an arithmetic number, because the mean of its divisors is an integer number (149804655).

Almost surely, 2^2142498917 is an apocalyptic number.

It is an amenable number.

2142498917 is a deficient number, since it is larger than the sum of its proper divisors (254375563).

2142498917 is a wasteful number, since it uses less digits than its factorization.

2142498917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23864.

The product of its digits is 290304, while the sum is 47.

The square root of 2142498917 is about 46287.1355454191. The cubic root of 2142498917 is about 1289.1601441936.

The spelling of 2142498917 in words is "two billion, one hundred forty-two million, four hundred ninety-eight thousand, nine hundred seventeen".