145535321420051 has 24 divisors (see below), whose sum is σ = 161341732299264. Its totient is φ = 131002607767680.

The previous prime is 145535321419963. The next prime is 145535321420053. The reversal of 145535321420051 is 150024123535541.

It is not a de Polignac number, because 145535321420051 - 2³⁴ = 145518141550867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145535321419990 and 145535321420008.

It is not an unprimeable number, because it can be changed into a prime (145535321420053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51882566 + ... + 54615668.

It is an arithmetic number, because the mean of its divisors is an integer number (6722572179136).

Almost surely, 2^{145535321420051} is an apocalyptic number.

145535321420051 is a deficient number, since it is larger than the sum of its proper divisors (15806410879213).

145535321420051 is a wasteful number, since it uses less digits than its factorization.

145535321420051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741171 (or 2741154 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 145535321420051 its reverse (150024123535541), we get a palindrome (295559444955592).

The spelling of 145535321420051 in words is "one hundred forty-five trillion, five hundred thirty-five billion, three hundred twenty-one million, four hundred twenty thousand, fifty-one".