146243506 has 8 divisors (see below), whose sum is σ = 219502620. Its totient is φ = 73075968.

The previous prime is 146243501. The next prime is 146243519. The reversal of 146243506 is 605342641.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 29062881 = 10825^2 + 5391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (146243501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18751 + ... + 25378.

Almost surely, 2^146243506 is an apocalyptic number.

146243506 is a deficient number, since it is larger than the sum of its proper divisors (73259114).

146243506 is a wasteful number, since it uses less digits than its factorization.

146243506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45788.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 146243506 is about 12093.1181256118. The cubic root of 146243506 is about 526.8563232100.

The spelling of 146243506 in words is "one hundred forty-six million, two hundred forty-three thousand, five hundred six".