145408547 has 2 divisors, whose sum is σ = 145408548. Its totient is φ = 145408546.

The previous prime is 145408541. The next prime is 145408561. The reversal of 145408547 is 745804541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145408547 - 2¹⁰ = 145407523 is a prime.

It is a super-2 number, since 2×145408547² = 42287291081302418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145408547.

It is not a weakly prime, because it can be changed into another prime (145408541) 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, 72704273 + 72704274.

It is an arithmetic number, because the mean of its divisors is an integer number (72704274).

Almost surely, 2^145408547 is an apocalyptic number.

145408547 is a deficient number, since it is larger than the sum of its proper divisors (1).

145408547 is an equidigital number, since it uses as much as digits as its factorization.

145408547 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 145408547 is about 12058.5466371367. The cubic root of 145408547 is about 525.8517355018.

The spelling of 145408547 in words is "one hundred forty-five million, four hundred eight thousand, five hundred forty-seven".