145053138 has 16 divisors (see below), whose sum is σ = 290234880. Its totient is φ = 48329616.

The previous prime is 145053119. The next prime is 145053193. The reversal of 145053138 is 831350541.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15631 + ... + 23117.

It is an arithmetic number, because the mean of its divisors is an integer number (18139680).

Almost surely, 2^145053138 is an apocalyptic number.

145053138 is an abundant number, since it is smaller than the sum of its proper divisors (145181742).

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

145053138 is a wasteful number, since it uses less digits than its factorization.

145053138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10721.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 145053138 is about 12043.8008120360. The cubic root of 145053138 is about 525.4229553085.

The spelling of 145053138 in words is "one hundred forty-five million, fifty-three thousand, one hundred thirty-eight".