145342775453 has 2 divisors, whose sum is σ = 145342775454. Its totient is φ = 145342775452.

The previous prime is 145342775449. The next prime is 145342775467. The reversal of 145342775453 is 354577243541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143581882084 + 1760893369 = 378922^2 + 41963^2 .

It is a cyclic number.

It is not a de Polignac number, because 145342775453 - 2² = 145342775449 is a prime.

It is a super-2 number, since 2×145342775453² (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 (145342775443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72671387726 + 72671387727.

It is an arithmetic number, because the mean of its divisors is an integer number (72671387727).

Almost surely, 2^145342775453 is an apocalyptic number.

It is an amenable number.

145342775453 is a deficient number, since it is larger than the sum of its proper divisors (1).

145342775453 is an equidigital number, since it uses as much as digits as its factorization.

145342775453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 50.

The spelling of 145342775453 in words is "one hundred forty-five billion, three hundred forty-two million, seven hundred seventy-five thousand, four hundred fifty-three".