145447645 has 8 divisors (see below), whose sum is σ = 199471104. Its totient is φ = 99735504.

The previous prime is 145447633. The next prime is 145447663. The reversal of 145447645 is 546744541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145447645 - 2⁷ = 145447517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145447598 and 145447607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077789 + ... + 2077858.

It is an arithmetic number, because the mean of its divisors is an integer number (24933888).

Almost surely, 2^145447645 is an apocalyptic number.

It is an amenable number.

145447645 is a deficient number, since it is larger than the sum of its proper divisors (54023459).

145447645 is an equidigital number, since it uses as much as digits as its factorization.

145447645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155659.

The product of its digits is 268800, while the sum is 40.

The square root of 145447645 is about 12060.1677019849. The cubic root of 145447645 is about 525.8988622793.

The spelling of 145447645 in words is "one hundred forty-five million, four hundred forty-seven thousand, six hundred forty-five".