147348638 has 4 divisors (see below), whose sum is σ = 221022960. Its totient is φ = 73674318.

The previous prime is 147348631. The next prime is 147348679. The reversal of 147348638 is 836843741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836843741 = 4463 ⋅187507.

It is a super-2 number, since 2×147348638² = 43423242240910088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147348631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36837158 + ... + 36837161.

It is an arithmetic number, because the mean of its divisors is an integer number (55255740).

Almost surely, 2^147348638 is an apocalyptic number.

147348638 is a deficient number, since it is larger than the sum of its proper divisors (73674322).

147348638 is an equidigital number, since it uses as much as digits as its factorization.

147348638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73674321.

The product of its digits is 387072, while the sum is 44.

The square root of 147348638 is about 12138.7247270873. The cubic root of 147348638 is about 528.1801091052.

The spelling of 147348638 in words is "one hundred forty-seven million, three hundred forty-eight thousand, six hundred thirty-eight".