145214988 has 24 divisors (see below), whose sum is σ = 339528000. Its totient is φ = 48306000.

The previous prime is 145214963. The next prime is 145215001. The reversal of 145214988 is 889412541.

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, 6138 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (14147000).

Almost surely, 2^145214988 is an apocalyptic number.

It is an amenable number.

145214988 is an abundant number, since it is smaller than the sum of its proper divisors (194313012).

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

145214988 is a wasteful number, since it uses less digits than its factorization.

145214988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24757 (or 24755 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 145214988 is about 12050.5181631331. The cubic root of 145214988 is about 525.6183046291.

The spelling of 145214988 in words is "one hundred forty-five million, two hundred fourteen thousand, nine hundred eighty-eight".