146208505 has 4 divisors (see below), whose sum is σ = 175450212. Its totient is φ = 116966800.

The previous prime is 146208487. The next prime is 146208529. The reversal of 146208505 is 505802641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74839801 + 71368704 = 8651^2 + 8448^2 .

It is not a de Polignac number, because 146208505 - 2²³ = 137819897 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14620846 + ... + 14620855.

It is an arithmetic number, because the mean of its divisors is an integer number (43862553).

Almost surely, 2^146208505 is an apocalyptic number.

It is an amenable number.

146208505 is a deficient number, since it is larger than the sum of its proper divisors (29241707).

146208505 is an equidigital number, since it uses as much as digits as its factorization.

146208505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29241706.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 146208505 is about 12091.6708936358. The cubic root of 146208505 is about 526.8142883645.

The spelling of 146208505 in words is "one hundred forty-six million, two hundred eight thousand, five hundred five".