145778027 has 8 divisors (see below), whose sum is σ = 150945792. Its totient is φ = 140639400.

The previous prime is 145777991. The next prime is 145778033. The reversal of 145778027 is 720877541.

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 145778027 - 2¹⁸ = 145515883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145778327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3158 + ... + 17364.

It is an arithmetic number, because the mean of its divisors is an integer number (18868224).

Almost surely, 2^145778027 is an apocalyptic number.

145778027 is a deficient number, since it is larger than the sum of its proper divisors (5167765).

145778027 is a wasteful number, since it uses less digits than its factorization.

145778027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14569.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 145778027 is about 12073.8571715919. The cubic root of 145778027 is about 526.2967514505.

The spelling of 145778027 in words is "one hundred forty-five million, seven hundred seventy-eight thousand, twenty-seven".