145480427 has 4 divisors (see below), whose sum is σ = 150173376. Its totient is φ = 140787480.

The previous prime is 145480421. The next prime is 145480453. The reversal of 145480427 is 724084541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724084541 = 103 ⋅7029947.

It is a cyclic number.

It is not a de Polignac number, because 145480427 - 2²⁶ = 78371563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145480421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2346428 + ... + 2346489.

It is an arithmetic number, because the mean of its divisors is an integer number (37543344).

Almost surely, 2^145480427 is an apocalyptic number.

145480427 is a deficient number, since it is larger than the sum of its proper divisors (4692949).

145480427 is an equidigital number, since it uses as much as digits as its factorization.

145480427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692948.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 145480427 is about 12061.5267275747. The cubic root of 145480427 is about 525.9383695568.

The spelling of 145480427 in words is "one hundred forty-five million, four hundred eighty thousand, four hundred twenty-seven".