146469 has 4 divisors (see below), whose sum is σ = 195296. Its totient is φ = 97644.

The previous prime is 146449. The next prime is 146477. The reversal of 146469 is 964641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 964641 = 3 ⋅321547.

It is not a de Polignac number, because 146469 - 2⁵ = 146437 is a prime.

It is a super-2 number, since 2×146469² = 42906335922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146449) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24409 + ... + 24414.

It is an arithmetic number, because the mean of its divisors is an integer number (48824).

2¹⁴⁶⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

146469 is a deficient number, since it is larger than the sum of its proper divisors (48827).

146469 is an equidigital number, since it uses as much as digits as its factorization.

146469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48826.

The product of its digits is 5184, while the sum is 30.

The square root of 146469 is about 382.7126859669. The cubic root of 146469 is about 52.7126972107.

The spelling of 146469 in words is "one hundred forty-six thousand, four hundred sixty-nine".