240002137 has 2 divisors, whose sum is σ = 240002138. Its totient is φ = 240002136.

The previous prime is 240002131. The next prime is 240002143. The reversal of 240002137 is 731200042.

It is a balanced prime because it is at equal distance from previous prime (240002131) and next prime (240002143).

It can be written as a sum of positive squares in only one way, i.e., 229946896 + 10055241 = 15164^2 + 3171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240002137 is a prime.

It is not a weakly prime, because it can be changed into another prime (240002131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120001068 + 120001069.

It is an arithmetic number, because the mean of its divisors is an integer number (120001069).

Almost surely, 2^240002137 is an apocalyptic number.

It is an amenable number.

240002137 is a deficient number, since it is larger than the sum of its proper divisors (1).

240002137 is an equidigital number, since it uses as much as digits as its factorization.

240002137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 240002137 is about 15492.0023560546. The cubic root of 240002137 is about 621.4483456730.

Adding to 240002137 its reverse (731200042), we get a palindrome (971202179).

The spelling of 240002137 in words is "two hundred forty million, two thousand, one hundred thirty-seven".