145754638 has 8 divisors (see below), whose sum is σ = 226171080. Its totient is φ = 70364280.

The previous prime is 145754633. The next prime is 145754641. The reversal of 145754638 is 836457541.

145754638 is digitally balanced in base 3, 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 super-2 number, since 2×145754638² = 42488828997022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145754594 and 145754603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145754633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256448 + ... + 1256563.

It is an arithmetic number, because the mean of its divisors is an integer number (28271385).

Almost surely, 2^145754638 is an apocalyptic number.

145754638 is a deficient number, since it is larger than the sum of its proper divisors (80416442).

145754638 is a wasteful number, since it uses less digits than its factorization.

145754638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513042.

The product of its digits is 403200, while the sum is 43.

The square root of 145754638 is about 12072.8885524550. Note that the first 3 decimals coincide. The cubic root of 145754638 is about 526.2686031455.

The spelling of 145754638 in words is "one hundred forty-five million, seven hundred fifty-four thousand, six hundred thirty-eight".