145027769 has 8 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 141487216.

The previous prime is 145027711. The next prime is 145027801. The reversal of 145027769 is 967720541.

145027769 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 a cyclic number.

It is not a de Polignac number, because 145027769 - 2²⁰ = 143979193 is a prime.

It is a super-2 number, since 2×145027769² = 42066107562234722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145027709) 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, 1844 + ... + 17130.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 2^145027769 is an apocalyptic number.

It is an amenable number.

145027769 is a deficient number, since it is larger than the sum of its proper divisors (3571591).

145027769 is a wasteful number, since it uses less digits than its factorization.

145027769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15519.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 145027769 is about 12042.7475685576. The cubic root of 145027769 is about 525.3923223228.

The spelling of 145027769 in words is "one hundred forty-five million, twenty-seven thousand, seven hundred sixty-nine".