145477147 has 2 divisors, whose sum is σ = 145477148. Its totient is φ = 145477146.

The previous prime is 145477133. The next prime is 145477153. The reversal of 145477147 is 741774541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145477147 - 2⁷ = 145477019 is a prime.

It is not a weakly prime, because it can be changed into another prime (145477187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72738573 + 72738574.

It is an arithmetic number, because the mean of its divisors is an integer number (72738574).

Almost surely, 2^145477147 is an apocalyptic number.

145477147 is a deficient number, since it is larger than the sum of its proper divisors (1).

145477147 is an equidigital number, since it uses as much as digits as its factorization.

145477147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109760, while the sum is 40.

The square root of 145477147 is about 12061.3907572883. The cubic root of 145477147 is about 525.9344169270.

The spelling of 145477147 in words is "one hundred forty-five million, four hundred seventy-seven thousand, one hundred forty-seven".