242957809151 has 4 divisors (see below), whose sum is σ = 243854332704. Its totient is φ = 242061285600.

The previous prime is 242957809141. The next prime is 242957809153. The reversal of 242957809151 is 151908759242.

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

It is a cyclic number.

It is not a de Polignac number, because 242957809151 - 2¹⁰ = 242957808127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242957809093 and 242957809102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242957809153) 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, 448261370 + ... + 448261911.

It is an arithmetic number, because the mean of its divisors is an integer number (60963583176).

Almost surely, 2^242957809151 is an apocalyptic number.

242957809151 is a deficient number, since it is larger than the sum of its proper divisors (896523553).

242957809151 is an equidigital number, since it uses as much as digits as its factorization.

242957809151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896523552.

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 242957809151 in words is "two hundred forty-two billion, nine hundred fifty-seven million, eight hundred nine thousand, one hundred fifty-one".