145784697 has 16 divisors (see below), whose sum is σ = 198868992. Its totient is φ = 94968720.

The previous prime is 145784669. The next prime is 145784731. The reversal of 145784697 is 796487541.

It is not a de Polignac number, because 145784697 - 2¹⁴ = 145768313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145784627) 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, 22672 + ... + 28382.

It is an arithmetic number, because the mean of its divisors is an integer number (12429312).

Almost surely, 2^145784697 is an apocalyptic number.

It is an amenable number.

145784697 is a deficient number, since it is larger than the sum of its proper divisors (53084295).

145784697 is a wasteful number, since it uses less digits than its factorization.

145784697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908.

The product of its digits is 1693440, while the sum is 51.

The square root of 145784697 is about 12074.1333850509. The cubic root of 145784697 is about 526.3047781421.

The spelling of 145784697 in words is "one hundred forty-five million, seven hundred eighty-four thousand, six hundred ninety-seven".