2188958137 has 4 divisors (see below), whose sum is σ = 2304166480. Its totient is φ = 2073749796.

The previous prime is 2188958117. The next prime is 2188958173. The reversal of 2188958137 is 7318598812.

It is a happy number.

2188958137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2188958137 - 2¹¹ = 2188956089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2188958117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57604143 + ... + 57604180.

It is an arithmetic number, because the mean of its divisors is an integer number (576041620).

Almost surely, 2^2188958137 is an apocalyptic number.

It is an amenable number.

2188958137 is a deficient number, since it is larger than the sum of its proper divisors (115208343).

2188958137 is a wasteful number, since it uses less digits than its factorization.

2188958137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115208342.

The product of its digits is 967680, while the sum is 52.

The square root of 2188958137 is about 46786.3028780860. The cubic root of 2188958137 is about 1298.4118944569.

The spelling of 2188958137 in words is "two billion, one hundred eighty-eight million, nine hundred fifty-eight thousand, one hundred thirty-seven".