240157069 has 2 divisors, whose sum is σ = 240157070. Its totient is φ = 240157068.

The previous prime is 240157067. The next prime is 240157123. The reversal of 240157069 is 960751042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219336100 + 20820969 = 14810^2 + 4563^2 .

It is a cyclic number.

It is not a de Polignac number, because 240157069 - 2¹ = 240157067 is a prime.

It is a super-2 number, since 2×240157069² = 115350835581341522, which contains 22 as substring.

Together with 240157067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240157063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120078534 + 120078535.

It is an arithmetic number, because the mean of its divisors is an integer number (120078535).

Almost surely, 2^240157069 is an apocalyptic number.

It is an amenable number.

240157069 is a deficient number, since it is larger than the sum of its proper divisors (1).

240157069 is an equidigital number, since it uses as much as digits as its factorization.

240157069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 240157069 is about 15497.0019358584. The cubic root of 240157069 is about 621.5820410442.

The spelling of 240157069 in words is "two hundred forty million, one hundred fifty-seven thousand, sixty-nine".