194152229237 has 4 divisors (see below), whose sum is σ = 194209827456. Its totient is φ = 194094631020.

The previous prime is 194152229213. The next prime is 194152229251. The reversal of 194152229237 is 732922251491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194152229237 - 2⁸ = 194152228981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194152229191 and 194152229200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194152229207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28794053 + ... + 28800794.

It is an arithmetic number, because the mean of its divisors is an integer number (48552456864).

Almost surely, 2^194152229237 is an apocalyptic number.

It is an amenable number.

194152229237 is a deficient number, since it is larger than the sum of its proper divisors (57598219).

194152229237 is an equidigital number, since it uses as much as digits as its factorization.

194152229237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57598218.

The product of its digits is 544320, while the sum is 47.

The spelling of 194152229237 in words is "one hundred ninety-four billion, one hundred fifty-two million, two hundred twenty-nine thousand, two hundred thirty-seven".