147806426 has 4 divisors (see below), whose sum is σ = 221709642. Its totient is φ = 73903212.

The previous prime is 147806413. The next prime is 147806429. The reversal of 147806426 is 624608741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624608741 = 211 ⋅2960231.

It can be written as a sum of positive squares in only one way, i.e., 143400625 + 4405801 = 11975^2 + 2099^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147806426.

It is not an unprimeable number, because it can be changed into a prime (147806429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36951605 + ... + 36951608.

Almost surely, 2^147806426 is an apocalyptic number.

147806426 is a deficient number, since it is larger than the sum of its proper divisors (73903216).

147806426 is an equidigital number, since it uses as much as digits as its factorization.

147806426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73903215.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 147806426 is about 12157.5666150756. The cubic root of 147806426 is about 528.7265332077.

The spelling of 147806426 in words is "one hundred forty-seven million, eight hundred six thousand, four hundred twenty-six".