145556479 has 2 divisors, whose sum is σ = 145556480. Its totient is φ = 145556478.

The previous prime is 145556447. The next prime is 145556503. The reversal of 145556479 is 974655541.

It is a strong prime.

It is an emirp because it is prime and its reverse (974655541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145556479 - 2⁵ = 145556447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145556429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72778239 + 72778240.

It is an arithmetic number, because the mean of its divisors is an integer number (72778240).

Almost surely, 2^145556479 is an apocalyptic number.

145556479 is a deficient number, since it is larger than the sum of its proper divisors (1).

145556479 is an equidigital number, since it uses as much as digits as its factorization.

145556479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 46.

The square root of 145556479 is about 12064.6789845400. The cubic root of 145556479 is about 526.0300008912.

The spelling of 145556479 in words is "one hundred forty-five million, five hundred fifty-six thousand, four hundred seventy-nine".