145242429 has 8 divisors (see below), whose sum is σ = 193748352. Its totient is φ = 96782400.

The previous prime is 145242421. The next prime is 145242431. The reversal of 145242429 is 924242541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145242429 - 2³ = 145242421 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 145242429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145242421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 17349.

It is an arithmetic number, because the mean of its divisors is an integer number (24218544).

Almost surely, 2^145242429 is an apocalyptic number.

It is an amenable number.

145242429 is a deficient number, since it is larger than the sum of its proper divisors (48505923).

145242429 is a wasteful number, since it uses less digits than its factorization.

145242429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947.

The product of its digits is 23040, while the sum is 33.

The square root of 145242429 is about 12051.6566910944. The cubic root of 145242429 is about 525.6514109075.

The spelling of 145242429 in words is "one hundred forty-five million, two hundred forty-two thousand, four hundred twenty-nine".