145520886 has 96 divisors (see below), whose sum is σ = 361152000. Its totient is φ = 38864448.

The previous prime is 145520873. The next prime is 145520891. The reversal of 145520886 is 688025541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 608755 + ... + 608993.

It is an arithmetic number, because the mean of its divisors is an integer number (3762000).

Almost surely, 2^145520886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145520886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180576000).

145520886 is an abundant number, since it is smaller than the sum of its proper divisors (215631114).

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

145520886 is a wasteful number, since it uses less digits than its factorization.

145520886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 145520886 is about 12063.2038033020. The cubic root of 145520886 is about 525.9871206010.

The spelling of 145520886 in words is "one hundred forty-five million, five hundred twenty thousand, eight hundred eighty-six".