145220224213487 has 2 divisors, whose sum is σ = 145220224213488. Its totient is φ = 145220224213486.

The previous prime is 145220224213411. The next prime is 145220224213501. The reversal of 145220224213487 is 784312422022541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145220224213487 - 2¹⁸ = 145220223951343 is a prime.

It is a super-3 number, since 3×145220224213487³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145220224213187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72610112106743 + 72610112106744.

It is an arithmetic number, because the mean of its divisors is an integer number (72610112106744).

Almost surely, 2^{145220224213487} is an apocalyptic number.

145220224213487 is a deficient number, since it is larger than the sum of its proper divisors (1).

145220224213487 is an equidigital number, since it uses as much as digits as its factorization.

145220224213487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 145220224213487 in words is "one hundred forty-five trillion, two hundred twenty billion, two hundred twenty-four million, two hundred thirteen thousand, four hundred eighty-seven".