242072149 has 16 divisors (see below), whose sum is σ = 274728960. Its totient is φ = 211302000.

The previous prime is 242072143. The next prime is 242072183. The reversal of 242072149 is 941270242.

It is a cyclic number.

It is not a de Polignac number, because 242072149 - 2⁷ = 242072021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 242072149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242072143) 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 15 ways as a sum of consecutive naturals, for example, 41962 + ... + 47380.

It is an arithmetic number, because the mean of its divisors is an integer number (17170560).

Almost surely, 2^242072149 is an apocalyptic number.

It is an amenable number.

242072149 is a deficient number, since it is larger than the sum of its proper divisors (32656811).

242072149 is a wasteful number, since it uses less digits than its factorization.

242072149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 242072149 is about 15558.6679699774. The cubic root of 242072149 is about 623.2298919608.

The spelling of 242072149 in words is "two hundred forty-two million, seventy-two thousand, one hundred forty-nine".