145026321 has 8 divisors (see below), whose sum is σ = 210947424. Its totient is φ = 87894720.

The previous prime is 145026313. The next prime is 145026367. The reversal of 145026321 is 123620541.

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

It is not a de Polignac number, because 145026321 - 2³ = 145026313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145026291 and 145026300.

It is not an unprimeable number, because it can be changed into a prime (145026311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197336 + ... + 2197401.

It is an arithmetic number, because the mean of its divisors is an integer number (26368428).

Almost surely, 2^145026321 is an apocalyptic number.

145026321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145026321 is a deficient number, since it is larger than the sum of its proper divisors (65921103).

145026321 is a wasteful number, since it uses less digits than its factorization.

145026321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394751.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 145026321 is about 12042.6874492366. The cubic root of 145026321 is about 525.3905737597.

Adding to 145026321 its reverse (123620541), we get a palindrome (268646862).

The spelling of 145026321 in words is "one hundred forty-five million, twenty-six thousand, three hundred twenty-one".