145634686 has 16 divisors (see below), whose sum is σ = 220651200. Its totient is φ = 72087840.

The previous prime is 145634669. The next prime is 145634719. The reversal of 145634686 is 686436541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117691 + ... + 118921.

It is an arithmetic number, because the mean of its divisors is an integer number (13790700).

Almost surely, 2^145634686 is an apocalyptic number.

145634686 is a deficient number, since it is larger than the sum of its proper divisors (75016514).

145634686 is a wasteful number, since it uses less digits than its factorization.

145634686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its digits is 414720, while the sum is 43.

The square root of 145634686 is about 12067.9197047378. The cubic root of 145634686 is about 526.1241953985.

The spelling of 145634686 in words is "one hundred forty-five million, six hundred thirty-four thousand, six hundred eighty-six".