146681426 has 4 divisors (see below), whose sum is σ = 220022142. Its totient is φ = 73340712.

The previous prime is 146681399. The next prime is 146681461. The reversal of 146681426 is 624186641.

146681426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 118048225 + 28633201 = 10865^2 + 5351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 146681426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36670355 + ... + 36670358.

Almost surely, 2^146681426 is an apocalyptic number.

146681426 is a deficient number, since it is larger than the sum of its proper divisors (73340716).

146681426 is an equidigital number, since it uses as much as digits as its factorization.

146681426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73340715.

The product of its digits is 55296, while the sum is 38.

The square root of 146681426 is about 12111.2107569805. The cubic root of 146681426 is about 527.3816821701.

The spelling of 146681426 in words is "one hundred forty-six million, six hundred eighty-one thousand, four hundred twenty-six".