145420405093 has 2 divisors, whose sum is σ = 145420405094. Its totient is φ = 145420405092.

The previous prime is 145420404991. The next prime is 145420405099. The reversal of 145420405093 is 390504024541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141280512129 + 4139892964 = 375873^2 + 64342^2 .

It is a cyclic number.

It is not a de Polignac number, because 145420405093 - 2⁹ = 145420404581 is a prime.

It is a super-2 number, since 2×145420405093² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145420405099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72710202546 + 72710202547.

It is an arithmetic number, because the mean of its divisors is an integer number (72710202547).

Almost surely, 2^145420405093 is an apocalyptic number.

It is an amenable number.

145420405093 is a deficient number, since it is larger than the sum of its proper divisors (1).

145420405093 is an equidigital number, since it uses as much as digits as its factorization.

145420405093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 145420405093 in words is "one hundred forty-five billion, four hundred twenty million, four hundred five thousand, ninety-three".