145761647 has 2 divisors, whose sum is σ = 145761648. Its totient is φ = 145761646.

The previous prime is 145761593. The next prime is 145761677. The reversal of 145761647 is 746167541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145761647 - 2¹⁴ = 145745263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145761677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72880823 + 72880824.

It is an arithmetic number, because the mean of its divisors is an integer number (72880824).

Almost surely, 2^145761647 is an apocalyptic number.

145761647 is a deficient number, since it is larger than the sum of its proper divisors (1).

145761647 is an equidigital number, since it uses as much as digits as its factorization.

145761647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 145761647 is about 12073.1788274671. The cubic root of 145761647 is about 526.2770386861.

The spelling of 145761647 in words is "one hundred forty-five million, seven hundred sixty-one thousand, six hundred forty-seven".