146274217 has 4 divisors (see below), whose sum is σ = 153972880. Its totient is φ = 138575556.

The previous prime is 146274187. The next prime is 146274221. The reversal of 146274217 is 712472641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146274217 is a prime.

It is a super-2 number, since 2×146274217² = 42792293117926178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146274257) 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, 3849303 + ... + 3849340.

It is an arithmetic number, because the mean of its divisors is an integer number (38493220).

Almost surely, 2^146274217 is an apocalyptic number.

It is an amenable number.

146274217 is a deficient number, since it is larger than the sum of its proper divisors (7698663).

146274217 is an equidigital number, since it uses as much as digits as its factorization.

146274217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698662.

The product of its digits is 18816, while the sum is 34.

The square root of 146274217 is about 12094.3878307255. The cubic root of 146274217 is about 526.8932004077.

The spelling of 146274217 in words is "one hundred forty-six million, two hundred seventy-four thousand, two hundred seventeen".