145234431021434 has 16 divisors (see below), whose sum is σ = 218958993949608. Its totient is φ = 72248104760832.

The previous prime is 145234431021391. The next prime is 145234431021467. The reversal of 145234431021434 is 434120134432541.

It can be written as a sum of positive squares in 4 ways, for example, as 136730809308025 + 8503621713409 = 11693195^2 + 2916097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145234431021391 and 145234431021400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60032342 + ... + 62404734.

Almost surely, 2^{145234431021434} is an apocalyptic number.

145234431021434 is a deficient number, since it is larger than the sum of its proper divisors (73724562928174).

145234431021434 is a wasteful number, since it uses less digits than its factorization.

145234431021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527969.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 145234431021434 its reverse (434120134432541), we get a palindrome (579354565453975).

The spelling of 145234431021434 in words is "one hundred forty-five trillion, two hundred thirty-four billion, four hundred thirty-one million, twenty-one thousand, four hundred thirty-four".