145923838 has 32 divisors (see below), whose sum is σ = 237636000. Its totient is φ = 66977280.

The previous prime is 145923803. The next prime is 145923839. The reversal of 145923838 is 838329541.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 145923794 and 145923803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145923839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356578 + ... + 356986.

It is an arithmetic number, because the mean of its divisors is an integer number (7426125).

Almost surely, 2^145923838 is an apocalyptic number.

145923838 is a deficient number, since it is larger than the sum of its proper divisors (91712162).

145923838 is a wasteful number, since it uses less digits than its factorization.

145923838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 207360, while the sum is 43.

The square root of 145923838 is about 12079.8939564882. The cubic root of 145923838 is about 526.4721649100.

The spelling of 145923838 in words is "one hundred forty-five million, nine hundred twenty-three thousand, eight hundred thirty-eight".