351894061 has 4 divisors (see below), whose sum is σ = 352307452. Its totient is φ = 351480672.

The previous prime is 351894047. The next prime is 351894071. The reversal of 351894061 is 160498153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160498153 = 4273 ⋅37561.

It can be written as a sum of positive squares in 2 ways, for example, as 128391561 + 223502500 = 11331^2 + 14950^2 .

It is a cyclic number.

It is not a de Polignac number, because 351894061 - 2¹⁹ = 351369773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 351894061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351894001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205416 + ... + 207121.

It is an arithmetic number, because the mean of its divisors is an integer number (88076863).

Almost surely, 2^351894061 is an apocalyptic number.

It is an amenable number.

351894061 is a deficient number, since it is larger than the sum of its proper divisors (413391).

351894061 is an equidigital number, since it uses as much as digits as its factorization.

351894061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413390.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 351894061 is about 18758.8395429995. The cubic root of 351894061 is about 705.9988263268.

It can be divided in two parts, 3518 and 94061, that added together give a palindrome (97579).

The spelling of 351894061 in words is "three hundred fifty-one million, eight hundred ninety-four thousand, sixty-one".