242155727 has 12 divisors (see below), whose sum is σ = 268220568. Its totient is φ = 218446800.

The previous prime is 242155709. The next prime is 242155733. The reversal of 242155727 is 727551242.

It is not a de Polignac number, because 242155727 - 2¹² = 242151631 is a prime.

It is a super-2 number, since 2×242155727² = 117278792237797058, which contains 22 as substring.

242155727 is a modest number, since divided by 155727 gives 242 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242155757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8213 + ... + 23489.

It is an arithmetic number, because the mean of its divisors is an integer number (22351714).

Almost surely, 2^242155727 is an apocalyptic number.

242155727 is a deficient number, since it is larger than the sum of its proper divisors (26064841).

242155727 is a wasteful number, since it uses less digits than its factorization.

242155727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15430 (or 15419 counting only the distinct ones).

The product of its digits is 39200, while the sum is 35.

The square root of 242155727 is about 15561.3536364932. The cubic root of 242155727 is about 623.3016093043.

The spelling of 242155727 in words is "two hundred forty-two million, one hundred fifty-five thousand, seven hundred twenty-seven".