145249927 has 8 divisors (see below), whose sum is σ = 153014400. Its totient is φ = 137497464.

The previous prime is 145249859. The next prime is 145249933. The reversal of 145249927 is 729942541.

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 145249927 - 2¹⁵ = 145217159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145249997) 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, 33024 + ... + 37162.

It is an arithmetic number, because the mean of its divisors is an integer number (19126800).

Almost surely, 2^145249927 is an apocalyptic number.

145249927 is a deficient number, since it is larger than the sum of its proper divisors (7764473).

145249927 is a wasteful number, since it uses less digits than its factorization.

145249927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005.

The product of its digits is 181440, while the sum is 43.

The square root of 145249927 is about 12051.9677646432. The cubic root of 145249927 is about 525.6604561671.

The spelling of 145249927 in words is "one hundred forty-five million, two hundred forty-nine thousand, nine hundred twenty-seven".