145420405055 has 8 divisors (see below), whose sum is σ = 178562730192. Its totient is φ = 113630827968.

The previous prime is 145420404991. The next prime is 145420405093. The reversal of 145420405055 is 550504024541.

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 145420405055 - 2⁶ = 145420404991 is a prime.

It is a super-2 number, since 2×145420405055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338186774 + ... + 338187203.

It is an arithmetic number, because the mean of its divisors is an integer number (22320341274).

Almost surely, 2^145420405055 is an apocalyptic number.

145420405055 is a deficient number, since it is larger than the sum of its proper divisors (33142325137).

145420405055 is an equidigital number, since it uses as much as digits as its factorization.

145420405055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676374025.

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 145420405055 its reverse (550504024541), we get a palindrome (695924429596).

The spelling of 145420405055 in words is "one hundred forty-five billion, four hundred twenty million, four hundred five thousand, fifty-five".