351681473 has 8 divisors (see below), whose sum is σ = 413164416. Its totient is φ = 295117200.

The previous prime is 351681467. The next prime is 351681511. The reversal of 351681473 is 374186153.

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

It is a cyclic number.

It is not a de Polignac number, because 351681473 - 2⁴ = 351681457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351681403) 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, 1229513 + ... + 1229798.

It is an arithmetic number, because the mean of its divisors is an integer number (51645552).

Almost surely, 2^351681473 is an apocalyptic number.

It is an amenable number.

351681473 is a deficient number, since it is larger than the sum of its proper divisors (61482943).

351681473 is a wasteful number, since it uses less digits than its factorization.

351681473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459335.

The product of its digits is 60480, while the sum is 38.

The square root of 351681473 is about 18753.1723449661. The cubic root of 351681473 is about 705.8566271737.

The spelling of 351681473 in words is "three hundred fifty-one million, six hundred eighty-one thousand, four hundred seventy-three".