145236478 has 8 divisors (see below), whose sum is σ = 218061720. Its totient is φ = 72549240.

The previous prime is 145236463. The next prime is 145236479. The reversal of 145236478 is 874632541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 145236478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145236479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31828 + ... + 36103.

It is an arithmetic number, because the mean of its divisors is an integer number (27257715).

Almost surely, 2^145236478 is an apocalyptic number.

145236478 is a deficient number, since it is larger than the sum of its proper divisors (72825242).

145236478 is a wasteful number, since it uses less digits than its factorization.

145236478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69002.

The product of its digits is 161280, while the sum is 40.

The square root of 145236478 is about 12051.4097930491. The cubic root of 145236478 is about 525.6442316594.

The spelling of 145236478 in words is "one hundred forty-five million, two hundred thirty-six thousand, four hundred seventy-eight".