193442631 has 8 divisors (see below), whose sum is σ = 258042624. Its totient is φ = 128902200.

The previous prime is 193442621. The next prime is 193442671. The reversal of 193442631 is 136244391.

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

It is not a de Polignac number, because 193442631 - 2⁶ = 193442567 is a prime.

It is a super-2 number, since 2×193442631² = 74840102976404322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 193442592 and 193442601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193442621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6661 + ... + 20766.

It is an arithmetic number, because the mean of its divisors is an integer number (32255328).

Almost surely, 2^193442631 is an apocalyptic number.

193442631 is a deficient number, since it is larger than the sum of its proper divisors (64599993).

193442631 is a wasteful number, since it uses less digits than its factorization.

193442631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29781.

The product of its digits is 15552, while the sum is 33.

The square root of 193442631 is about 13908.3655042568. The cubic root of 193442631 is about 578.3411090226.

The spelling of 193442631 in words is "one hundred ninety-three million, four hundred forty-two thousand, six hundred thirty-one".