145041553 has 2 divisors, whose sum is σ = 145041554. Its totient is φ = 145041552.

The previous prime is 145041541. The next prime is 145041563. The reversal of 145041553 is 355140541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143712144 + 1329409 = 11988^2 + 1153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145041553 is a prime.

It is not a weakly prime, because it can be changed into another prime (145041503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72520776 + 72520777.

It is an arithmetic number, because the mean of its divisors is an integer number (72520777).

Almost surely, 2^145041553 is an apocalyptic number.

It is an amenable number.

145041553 is a deficient number, since it is larger than the sum of its proper divisors (1).

145041553 is an equidigital number, since it uses as much as digits as its factorization.

145041553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145041553 is about 12043.3198496096. The cubic root of 145041553 is about 525.4089669015.

The spelling of 145041553 in words is "one hundred forty-five million, forty-one thousand, five hundred fifty-three".