240157243 has 2 divisors, whose sum is σ = 240157244. Its totient is φ = 240157242.

The previous prime is 240157231. The next prime is 240157259. The reversal of 240157243 is 342751042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240157243 - 2²¹ = 238060091 is a prime.

It is a super-2 number, since 2×240157243² = 115351002730722098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240157943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120078621 + 120078622.

It is an arithmetic number, because the mean of its divisors is an integer number (120078622).

Almost surely, 2^240157243 is an apocalyptic number.

240157243 is a deficient number, since it is larger than the sum of its proper divisors (1).

240157243 is an equidigital number, since it uses as much as digits as its factorization.

240157243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 240157243 is about 15497.0075498465. The cubic root of 240157243 is about 621.5821911616.

The spelling of 240157243 in words is "two hundred forty million, one hundred fifty-seven thousand, two hundred forty-three".