145424545 has 16 divisors (see below), whose sum is σ = 211171968. Its totient is φ = 93853440.

The previous prime is 145424507. The next prime is 145424563. The reversal of 145424545 is 545424541.

It is not a de Polignac number, because 145424545 - 2¹⁵ = 145391777 is a prime.

It is a super-2 number, since 2×145424545² = 42296596576914050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145424545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121611 + ... + 122800.

It is an arithmetic number, because the mean of its divisors is an integer number (13198248).

Almost surely, 2^145424545 is an apocalyptic number.

It is an amenable number.

145424545 is a deficient number, since it is larger than the sum of its proper divisors (65747423).

145424545 is a wasteful number, since it uses less digits than its factorization.

145424545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244440.

The product of its digits is 64000, while the sum is 34.

The square root of 145424545 is about 12059.2099658311. The cubic root of 145424545 is about 525.8710197134.

The spelling of 145424545 in words is "one hundred forty-five million, four hundred twenty-four thousand, five hundred forty-five".