145521225033407 has 2 divisors, whose sum is σ = 145521225033408. Its totient is φ = 145521225033406.

The previous prime is 145521225033391. The next prime is 145521225033469. The reversal of 145521225033407 is 704330522125541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145521225033407 - 2⁴ = 145521225033391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145521225033607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72760612516703 + 72760612516704.

It is an arithmetic number, because the mean of its divisors is an integer number (72760612516704).

Almost surely, 2^{145521225033407} is an apocalyptic number.

145521225033407 is a deficient number, since it is larger than the sum of its proper divisors (1).

145521225033407 is an equidigital number, since it uses as much as digits as its factorization.

145521225033407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 44.

Adding to 145521225033407 its reverse (704330522125541), we get a palindrome (849851747158948).

The spelling of 145521225033407 in words is "one hundred forty-five trillion, five hundred twenty-one billion, two hundred twenty-five million, thirty-three thousand, four hundred seven".