242631136197 has 12 divisors (see below), whose sum is σ = 353869792224. Its totient is φ = 160183662120.

The previous prime is 242631136193. The next prime is 242631136207. The reversal of 242631136197 is 791631136242.

242631136197 is a `hidden beast` number, since 2 + 4 + 2 + 631 + 1 + 3 + 6 + 1 + 9 + 7 = 666.

It is not a de Polignac number, because 242631136197 - 2² = 242631136193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242631136193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130868079 + ... + 130869932.

It is an arithmetic number, because the mean of its divisors is an integer number (29489149352).

Almost surely, 2^242631136197 is an apocalyptic number.

It is an amenable number.

242631136197 is a deficient number, since it is larger than the sum of its proper divisors (111238656027).

242631136197 is a wasteful number, since it uses less digits than its factorization.

242631136197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261738120 (or 261738117 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

Adding to 242631136197 its sum of digits (45), we get a palindrome (242631136242).

The spelling of 242631136197 in words is "two hundred forty-two billion, six hundred thirty-one million, one hundred thirty-six thousand, one hundred ninety-seven".