351387138 has 32 divisors (see below), whose sum is σ = 733525632. Its totient is φ = 112112000.

The previous prime is 351387137. The next prime is 351387149. The reversal of 351387138 is 831783153.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 351387096 and 351387105.

It is not an unprimeable number, because it can be changed into a prime (351387133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438 + ... + 26513.

It is an arithmetic number, because the mean of its divisors is an integer number (22922676).

Almost surely, 2^351387138 is an apocalyptic number.

351387138 is an abundant number, since it is smaller than the sum of its proper divisors (382138494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351387138 is a wasteful number, since it uses less digits than its factorization.

351387138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27050.

The product of its digits is 60480, while the sum is 39.

The square root of 351387138 is about 18745.3230967087. The cubic root of 351387138 is about 705.6596531944.

The spelling of 351387138 in words is "three hundred fifty-one million, three hundred eighty-seven thousand, one hundred thirty-eight".