145684742 has 24 divisors (see below), whose sum is σ = 267587640. Its totient is φ = 59149440.

The previous prime is 145684729. The next prime is 145684787. The reversal of 145684742 is 247486541.

145684742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 145684742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37259 + ... + 40982.

It is an arithmetic number, because the mean of its divisors is an integer number (11149485).

Almost surely, 2^145684742 is an apocalyptic number.

145684742 is a deficient number, since it is larger than the sum of its proper divisors (121902898).

145684742 is a wasteful number, since it uses less digits than its factorization.

145684742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78276 (or 78269 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 145684742 is about 12069.9934548450. The cubic root of 145684742 is about 526.1844664249.

The spelling of 145684742 in words is "one hundred forty-five million, six hundred eighty-four thousand, seven hundred forty-two".