310234138 has 4 divisors (see below), whose sum is σ = 465351210. Its totient is φ = 155117068.

The previous prime is 310234129. The next prime is 310234193. The reversal of 310234138 is 831432013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831432013 = 61 ⋅13630033.

It can be written as a sum of positive squares in only one way, i.e., 304048969 + 6185169 = 17437^2 + 2487^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77558533 + ... + 77558536.

Almost surely, 2^310234138 is an apocalyptic number.

310234138 is a deficient number, since it is larger than the sum of its proper divisors (155117072).

310234138 is a wasteful number, since it uses less digits than its factorization.

310234138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155117071.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 310234138 is about 17613.4646790460. The cubic root of 310234138 is about 676.9602918411.

The spelling of 310234138 in words is "three hundred ten million, two hundred thirty-four thousand, one hundred thirty-eight".