351172427 has 4 divisors (see below), whose sum is σ = 352629816. Its totient is φ = 349715040.

The previous prime is 351172411. The next prime is 351172457. The reversal of 351172427 is 724271153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724271153 = 26717 ⋅27109.

It is a cyclic number.

It is not a de Polignac number, because 351172427 - 2⁴ = 351172411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351172393 and 351172402.

It is not an unprimeable number, because it can be changed into a prime (351172457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728333 + ... + 728814.

It is an arithmetic number, because the mean of its divisors is an integer number (88157454).

Almost surely, 2^351172427 is an apocalyptic number.

351172427 is a deficient number, since it is larger than the sum of its proper divisors (1457389).

351172427 is a wasteful number, since it uses less digits than its factorization.

351172427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457388.

The product of its digits is 11760, while the sum is 32.

The square root of 351172427 is about 18739.5951663850. The cubic root of 351172427 is about 705.5158955513.

The spelling of 351172427 in words is "three hundred fifty-one million, one hundred seventy-two thousand, four hundred twenty-seven".