145463447 has 2 divisors, whose sum is σ = 145463448. Its totient is φ = 145463446.

The previous prime is 145463419. The next prime is 145463471. The reversal of 145463447 is 744364541.

145463447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (744364541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145463447 - 2¹² = 145459351 is a prime.

It is a super-2 number, since 2×145463447² = 42319228826243618, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 145463447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145463147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72731723 + 72731724.

It is an arithmetic number, because the mean of its divisors is an integer number (72731724).

Almost surely, 2^145463447 is an apocalyptic number.

145463447 is a deficient number, since it is larger than the sum of its proper divisors (1).

145463447 is an equidigital number, since it uses as much as digits as its factorization.

145463447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 38.

The square root of 145463447 is about 12060.8228160437. The cubic root of 145463447 is about 525.9179068248.

The spelling of 145463447 in words is "one hundred forty-five million, four hundred sixty-three thousand, four hundred forty-seven".