301430138 has 4 divisors (see below), whose sum is σ = 452145210. Its totient is φ = 150715068.

The previous prime is 301430113. The next prime is 301430141. The reversal of 301430138 is 831034103.

It is a happy number.

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., 299393809 + 2036329 = 17303^2 + 1427^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75357533 + ... + 75357536.

Almost surely, 2^301430138 is an apocalyptic number.

301430138 is a deficient number, since it is larger than the sum of its proper divisors (150715072).

301430138 is a wasteful number, since it uses less digits than its factorization.

301430138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150715071.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 301430138 is about 17361.7435184373. The cubic root of 301430138 is about 670.4950214122.

The spelling of 301430138 in words is "three hundred one million, four hundred thirty thousand, one hundred thirty-eight".