194152642 has 8 divisors (see below), whose sum is σ = 291628476. Its totient is φ = 96943152.

The previous prime is 194152627. The next prime is 194152643. The reversal of 194152642 is 246251491.

It can be written as a sum of positive squares in 2 ways, for example, as 135001161 + 59151481 = 11619^2 + 7691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 194152598 and 194152607.

It is not an unprimeable number, because it can be changed into a prime (194152643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64753 + ... + 67684.

Almost surely, 2^194152642 is an apocalyptic number.

194152642 is a deficient number, since it is larger than the sum of its proper divisors (97475834).

194152642 is a wasteful number, since it uses less digits than its factorization.

194152642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133172.

The product of its digits is 17280, while the sum is 34.

The square root of 194152642 is about 13933.8667282273. The cubic root of 194152642 is about 579.0478253226.

The spelling of 194152642 in words is "one hundred ninety-four million, one hundred fifty-two thousand, six hundred forty-two".