242531149 has 8 divisors (see below), whose sum is σ = 278003648. Its totient is φ = 207264960.

The previous prime is 242531117. The next prime is 242531153. The reversal of 242531149 is 941135242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242531149 - 2⁵ = 242531117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242531149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242531249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49047 + ... + 53764.

It is an arithmetic number, because the mean of its divisors is an integer number (34750456).

Almost surely, 2^242531149 is an apocalyptic number.

It is an amenable number.

242531149 is a deficient number, since it is larger than the sum of its proper divisors (35472499).

242531149 is a wasteful number, since it uses less digits than its factorization.

242531149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103155.

The product of its digits is 8640, while the sum is 31.

The square root of 242531149 is about 15573.4116043981. The cubic root of 242531149 is about 623.6235513278.

The spelling of 242531149 in words is "two hundred forty-two million, five hundred thirty-one thousand, one hundred forty-nine".