145330400304021 has 8 divisors (see below), whose sum is σ = 193773945554464. Its totient is φ = 96886894294800.

The previous prime is 145330400304013. The next prime is 145330400304043. The reversal of 145330400304021 is 120403004033541.

145330400304021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145330400304021 - 2³ = 145330400304013 is a prime.

It is a super-2 number, since 2×145330400304021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145330400304021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145330400304821) 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, 327975 + ... + 17051931.

It is an arithmetic number, because the mean of its divisors is an integer number (24221743194308).

Almost surely, 2^{145330400304021} is an apocalyptic number.

It is an amenable number.

145330400304021 is a deficient number, since it is larger than the sum of its proper divisors (48443545250443).

145330400304021 is a wasteful number, since it uses less digits than its factorization.

145330400304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19620611.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 145330400304021 its reverse (120403004033541), we get a palindrome (265733404337562).

The spelling of 145330400304021 in words is "one hundred forty-five trillion, three hundred thirty billion, four hundred million, three hundred four thousand, twenty-one".