145107771 has 8 divisors (see below), whose sum is σ = 193550160. Its totient is φ = 96701952.

The previous prime is 145107761. The next prime is 145107791. The reversal of 145107771 is 177701541.

145107771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145107771 - 2⁷ = 145107643 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145107761) 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, 2091 + ... + 17163.

It is an arithmetic number, because the mean of its divisors is an integer number (24193770).

Almost surely, 2^145107771 is an apocalyptic number.

145107771 is a deficient number, since it is larger than the sum of its proper divisors (48442389).

145107771 is a wasteful number, since it uses less digits than its factorization.

145107771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18285.

The product of its (nonzero) digits is 6860, while the sum is 33.

The square root of 145107771 is about 12046.0686948066. The cubic root of 145107771 is about 525.4889123538.

The spelling of 145107771 in words is "one hundred forty-five million, one hundred seven thousand, seven hundred seventy-one".