145533705 has 8 divisors (see below), whose sum is σ = 232853952. Its totient is φ = 77617968.

The previous prime is 145533701. The next prime is 145533743. The reversal of 145533705 is 507335541.

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

It is not a de Polignac number, because 145533705 - 2² = 145533701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145533701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851109 + ... + 4851138.

It is an arithmetic number, because the mean of its divisors is an integer number (29106744).

Almost surely, 2^145533705 is an apocalyptic number.

145533705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145533705 is a deficient number, since it is larger than the sum of its proper divisors (87320247).

145533705 is an equidigital number, since it uses as much as digits as its factorization.

145533705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702255.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 145533705 is about 12063.7351181133. The cubic root of 145533705 is about 526.0025649612.

The spelling of 145533705 in words is "one hundred forty-five million, five hundred thirty-three thousand, seven hundred five".