145468247 has 2 divisors, whose sum is σ = 145468248. Its totient is φ = 145468246.

The previous prime is 145468231. The next prime is 145468273. The reversal of 145468247 is 742864541.

It is a weak prime.

It is an emirp because it is prime and its reverse (742864541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145468247 - 2⁴ = 145468231 is a prime.

It is a super-2 number, since 2×145468247² = 42322021770506018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145408247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72734123 + 72734124.

It is an arithmetic number, because the mean of its divisors is an integer number (72734124).

Almost surely, 2^145468247 is an apocalyptic number.

145468247 is a deficient number, since it is larger than the sum of its proper divisors (1).

145468247 is an equidigital number, since it uses as much as digits as its factorization.

145468247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 41.

The square root of 145468247 is about 12061.0218058007. The cubic root of 145468247 is about 525.9236915041.

The spelling of 145468247 in words is "one hundred forty-five million, four hundred sixty-eight thousand, two hundred forty-seven".