145337447 has 2 divisors, whose sum is σ = 145337448. Its totient is φ = 145337446.

The previous prime is 145337419. The next prime is 145337459. The reversal of 145337447 is 744733541.

It is a happy number.

145337447 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 a cyclic number.

It is not a de Polignac number, because 145337447 - 2⁶ = 145337383 is a prime.

It is a super-2 number, since 2×145337447² = 42245947000955618, which contains 22 as substring.

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 145337447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145337417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72668723 + 72668724.

It is an arithmetic number, because the mean of its divisors is an integer number (72668724).

Almost surely, 2^145337447 is an apocalyptic number.

145337447 is a deficient number, since it is larger than the sum of its proper divisors (1).

145337447 is an equidigital number, since it uses as much as digits as its factorization.

145337447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 38.

The square root of 145337447 is about 12055.5981601910. The cubic root of 145337447 is about 525.7660134571.

The spelling of 145337447 in words is "one hundred forty-five million, three hundred thirty-seven thousand, four hundred forty-seven".