351448138 has 4 divisors (see below), whose sum is σ = 527172210. Its totient is φ = 175724068.

The previous prime is 351448127. The next prime is 351448151. The reversal of 351448138 is 831844153.

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

It can be written as a sum of positive squares in only one way, i.e., 295392969 + 56055169 = 17187^2 + 7487^2 .

It is a junction number, because it is equal to n+sod(n) for n = 351448097 and 351448106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87862033 + ... + 87862036.

Almost surely, 2^351448138 is an apocalyptic number.

351448138 is a deficient number, since it is larger than the sum of its proper divisors (175724072).

351448138 is a wasteful number, since it uses less digits than its factorization.

351448138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175724071.

The product of its digits is 46080, while the sum is 37.

The square root of 351448138 is about 18746.9500986160. The cubic root of 351448138 is about 705.7004844634.

The spelling of 351448138 in words is "three hundred fifty-one million, four hundred forty-eight thousand, one hundred thirty-eight".