147493858 has 4 divisors (see below), whose sum is σ = 221240790. Its totient is φ = 73746928.

The previous prime is 147493793. The next prime is 147493861. The reversal of 147493858 is 858394741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858394741 = 5297 ⋅162053.

It can be written as a sum of positive squares in only one way, i.e., 127983969 + 19509889 = 11313^2 + 4417^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 36873463 + ... + 36873466.

Almost surely, 2^147493858 is an apocalyptic number.

147493858 is a deficient number, since it is larger than the sum of its proper divisors (73746932).

147493858 is an equidigital number, since it uses as much as digits as its factorization.

147493858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73746931.

The product of its digits is 967680, while the sum is 49.

The square root of 147493858 is about 12144.7049367204. The cubic root of 147493858 is about 528.3535687588.

The spelling of 147493858 in words is "one hundred forty-seven million, four hundred ninety-three thousand, eight hundred fifty-eight".