394961135 has 4 divisors (see below), whose sum is σ = 473953368. Its totient is φ = 315968904.

The previous prime is 394961117. The next prime is 394961167. The reversal of 394961135 is 531169493.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394961135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394961092 and 394961101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39496109 + ... + 39496118.

It is an arithmetic number, because the mean of its divisors is an integer number (118488342).

Almost surely, 2^394961135 is an apocalyptic number.

394961135 is a deficient number, since it is larger than the sum of its proper divisors (78992233).

394961135 is an equidigital number, since it uses as much as digits as its factorization.

394961135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78992232.

The product of its digits is 87480, while the sum is 41.

The square root of 394961135 is about 19873.6291351127. The cubic root of 394961135 is about 733.6993270653.

The spelling of 394961135 in words is "three hundred ninety-four million, nine hundred sixty-one thousand, one hundred thirty-five".