145024121 has 8 divisors (see below), whose sum is σ = 159348000. Its totient is φ = 130890240.

The previous prime is 145024109. The next prime is 145024123. The reversal of 145024121 is 121420541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145024121 - 2⁶ = 145024057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145024093 and 145024102.

It is not an unprimeable number, because it can be changed into a prime (145024123) 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, 45896 + ... + 48953.

It is an arithmetic number, because the mean of its divisors is an integer number (19918500).

Almost surely, 2^145024121 is an apocalyptic number.

145024121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145024121 is a deficient number, since it is larger than the sum of its proper divisors (14323879).

145024121 is a wasteful number, since it uses less digits than its factorization.

145024121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94999.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 145024121 is about 12042.5961071523. The cubic root of 145024121 is about 525.3879170808.

Adding to 145024121 its reverse (121420541), we get a palindrome (266444662).

The spelling of 145024121 in words is "one hundred forty-five million, twenty-four thousand, one hundred twenty-one".