145505267 has 4 divisors (see below), whose sum is σ = 150522720. Its totient is φ = 140487816.

The previous prime is 145505257. The next prime is 145505273. The reversal of 145505267 is 762505541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145505267 - 2¹⁰ = 145504243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145505207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508683 + ... + 2508740.

It is an arithmetic number, because the mean of its divisors is an integer number (37630680).

Almost surely, 2^145505267 is an apocalyptic number.

145505267 is a deficient number, since it is larger than the sum of its proper divisors (5017453).

145505267 is an equidigital number, since it uses as much as digits as its factorization.

145505267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017452.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 145505267 is about 12062.5564040132. The cubic root of 145505267 is about 525.9683015687.

The spelling of 145505267 in words is "one hundred forty-five million, five hundred five thousand, two hundred sixty-seven".