242402151 has 4 divisors (see below), whose sum is σ = 323202872. Its totient is φ = 161601432.

The previous prime is 242402141. The next prime is 242402159. The reversal of 242402151 is 151204242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242402151 - 2¹³ = 242393959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242402159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40400356 + ... + 40400361.

It is an arithmetic number, because the mean of its divisors is an integer number (80800718).

Almost surely, 2^242402151 is an apocalyptic number.

242402151 is a deficient number, since it is larger than the sum of its proper divisors (80800721).

242402151 is an equidigital number, since it uses as much as digits as its factorization.

242402151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80800720.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 242402151 is about 15569.2694433618. The cubic root of 242402151 is about 623.5129669650.

Adding to 242402151 its reverse (151204242), we get a palindrome (393606393).

The spelling of 242402151 in words is "two hundred forty-two million, four hundred two thousand, one hundred fifty-one".