146947453 has 4 divisors (see below), whose sum is σ = 147341788. Its totient is φ = 146553120.

The previous prime is 146947417. The next prime is 146947457. The reversal of 146947453 is 354749641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354749641 = 2909 ⋅121949.

It can be written as a sum of positive squares in 2 ways, for example, as 49589764 + 97357689 = 7042^2 + 9867^2 .

It is a cyclic number.

It is not a de Polignac number, because 146947453 - 2¹⁷ = 146816381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146947457) 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, 196608 + ... + 197353.

It is an arithmetic number, because the mean of its divisors is an integer number (36835447).

Almost surely, 2^146947453 is an apocalyptic number.

It is an amenable number.

146947453 is a deficient number, since it is larger than the sum of its proper divisors (394335).

146947453 is an equidigital number, since it uses as much as digits as its factorization.

146947453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394334.

The product of its digits is 362880, while the sum is 43.

The square root of 146947453 is about 12122.1884575352. The cubic root of 146947453 is about 527.7003160956.

The spelling of 146947453 in words is "one hundred forty-six million, nine hundred forty-seven thousand, four hundred fifty-three".