240156645097 has 2 divisors, whose sum is σ = 240156645098. Its totient is φ = 240156645096.

The previous prime is 240156645077. The next prime is 240156645139. The reversal of 240156645097 is 790546651042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134235037161 + 105921607936 = 366381^2 + 325456^2 .

It is a cyclic number.

It is not a de Polignac number, because 240156645097 - 2⁷ = 240156644969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240156645097.

It is not a weakly prime, because it can be changed into another prime (240156645077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120078322548 + 120078322549.

It is an arithmetic number, because the mean of its divisors is an integer number (120078322549).

Almost surely, 2^240156645097 is an apocalyptic number.

It is an amenable number.

240156645097 is a deficient number, since it is larger than the sum of its proper divisors (1).

240156645097 is an equidigital number, since it uses as much as digits as its factorization.

240156645097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 240156645097 in words is "two hundred forty billion, one hundred fifty-six million, six hundred forty-five thousand, ninety-seven".