242425031 has 4 divisors (see below), whose sum is σ = 243694464. Its totient is φ = 241155600.

The previous prime is 242425003. The next prime is 242425067. The reversal of 242425031 is 130524242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130524242 = 2 ⋅65262121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242425031 is a prime.

It is a super-2 number, since 2×242425031² = 117539791310701922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 242424988 and 242425006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242425081) 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, 634430 + ... + 634811.

It is an arithmetic number, because the mean of its divisors is an integer number (60923616).

Almost surely, 2^242425031 is an apocalyptic number.

242425031 is a deficient number, since it is larger than the sum of its proper divisors (1269433).

242425031 is a wasteful number, since it uses less digits than its factorization.

242425031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269432.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 242425031 is about 15570.0042068074. The cubic root of 242425031 is about 623.5325838535.

Adding to 242425031 its reverse (130524242), we get a palindrome (372949273).

The spelling of 242425031 in words is "two hundred forty-two million, four hundred twenty-five thousand, thirty-one".