145048457 has 2 divisors, whose sum is σ = 145048458. Its totient is φ = 145048456.

The previous prime is 145048441. The next prime is 145048469. The reversal of 145048457 is 754840541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133379401 + 11669056 = 11549^2 + 3416^2 .

It is a cyclic number.

It is not a de Polignac number, because 145048457 - 2⁴ = 145048441 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145048457.

It is not a weakly prime, because it can be changed into another prime (145048427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72524228 + 72524229.

It is an arithmetic number, because the mean of its divisors is an integer number (72524229).

Almost surely, 2^145048457 is an apocalyptic number.

It is an amenable number.

145048457 is a deficient number, since it is larger than the sum of its proper divisors (1).

145048457 is an equidigital number, since it uses as much as digits as its factorization.

145048457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 145048457 is about 12043.6064781277. The cubic root of 145048457 is about 525.4173032848.

Adding to 145048457 its reverse (754840541), we get a palindrome (899888998).

It can be divided in two parts, 1450484 and 57, that added together give a palindrome (1450541).

The spelling of 145048457 in words is "one hundred forty-five million, forty-eight thousand, four hundred fifty-seven".