145587738 has 8 divisors (see below), whose sum is σ = 291175488. Its totient is φ = 48529244.

The previous prime is 145587733. The next prime is 145587787. The reversal of 145587738 is 837785541.

It is a happy number.

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

145587738 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (145587733) 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, 12132306 + ... + 12132317.

It is an arithmetic number, because the mean of its divisors is an integer number (36396936).

Almost surely, 2^145587738 is an apocalyptic number.

145587738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145587738 is a wasteful number, since it uses less digits than its factorization.

145587738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24264628.

The product of its digits is 940800, while the sum is 48.

The square root of 145587738 is about 12065.9743908231. The cubic root of 145587738 is about 526.0676540756.

The spelling of 145587738 in words is "one hundred forty-five million, five hundred eighty-seven thousand, seven hundred thirty-eight".