145111669 has 16 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 131725440.

The previous prime is 145111657. The next prime is 145111693. The reversal of 145111669 is 966111541.

145111669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145111669 - 2¹¹ = 145109621 is a prime.

It is a super-2 number, since 2×145111669² = 42114792959931122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145111469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32812 + ... + 36970.

It is an arithmetic number, because the mean of its divisors is an integer number (9959040).

Almost surely, 2^145111669 is an apocalyptic number.

It is an amenable number.

145111669 is a deficient number, since it is larger than the sum of its proper divisors (14232971).

145111669 is a wasteful number, since it uses less digits than its factorization.

145111669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260.

The product of its digits is 6480, while the sum is 34.

The square root of 145111669 is about 12046.2304892443. The cubic root of 145111669 is about 525.4936176783.

The spelling of 145111669 in words is "one hundred forty-five million, one hundred eleven thousand, six hundred sixty-nine".