145054344469 has 2 divisors, whose sum is σ = 145054344470. Its totient is φ = 145054344468.

The previous prime is 145054344451. The next prime is 145054344569. The reversal of 145054344469 is 964443450541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143497016100 + 1557328369 = 378810^2 + 39463^2 .

It is a cyclic number.

It is not a de Polignac number, because 145054344469 - 2⁵ = 145054344437 is a prime.

It is a super-2 number, since 2×145054344469² (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 (145054344569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72527172234 + 72527172235.

It is an arithmetic number, because the mean of its divisors is an integer number (72527172235).

Almost surely, 2^145054344469 is an apocalyptic number.

It is an amenable number.

145054344469 is a deficient number, since it is larger than the sum of its proper divisors (1).

145054344469 is an equidigital number, since it uses as much as digits as its factorization.

145054344469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 145054344469 in words is "one hundred forty-five billion, fifty-four million, three hundred forty-four thousand, four hundred sixty-nine".