146438315 has 4 divisors (see below), whose sum is σ = 175725984. Its totient is φ = 117150648.

The previous prime is 146438287. The next prime is 146438317. The reversal of 146438315 is 513834641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513834641 = 31 ⋅16575311.

It is a cyclic number.

It is not a de Polignac number, because 146438315 - 2⁶ = 146438251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146438317) 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, 14643827 + ... + 14643836.

It is an arithmetic number, because the mean of its divisors is an integer number (43931496).

Almost surely, 2^146438315 is an apocalyptic number.

146438315 is a deficient number, since it is larger than the sum of its proper divisors (29287669).

146438315 is an equidigital number, since it uses as much as digits as its factorization.

146438315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29287668.

The product of its digits is 34560, while the sum is 35.

The square root of 146438315 is about 12101.1699847577. The cubic root of 146438315 is about 527.0901588094.

The spelling of 146438315 in words is "one hundred forty-six million, four hundred thirty-eight thousand, three hundred fifteen".