145429 has 4 divisors (see below), whose sum is σ = 151776. Its totient is φ = 139084.

The previous prime is 145423. The next prime is 145433. The reversal of 145429 is 924541.

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: 924541 = 443 ⋅2087.

It is a cyclic number.

It is not a de Polignac number, because 145429 - 2⁹ = 144917 is a prime.

It is a super-2 number, since 2×145429² = 42299188082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3139 + ... + 3184.

It is an arithmetic number, because the mean of its divisors is an integer number (37944).

2¹⁴⁵⁴²⁹ is an apocalyptic number.

It is an amenable number.

145429 is a deficient number, since it is larger than the sum of its proper divisors (6347).

145429 is an equidigital number, since it uses as much as digits as its factorization.

145429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346.

The product of its digits is 1440, while the sum is 25.

The square root of 145429 is about 381.3515438542. The cubic root of 145429 is about 52.5876389581.

The spelling of 145429 in words is "one hundred forty-five thousand, four hundred twenty-nine".