145238562 has 64 divisors (see below), whose sum is σ = 370728960. Its totient is φ = 41286672.

The previous prime is 145238557. The next prime is 145238593. The reversal of 145238562 is 265832541.

145238562 is a `hidden beast` number, since 14 + 52 + 38 + 562 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83433 + ... + 85155.

It is an arithmetic number, because the mean of its divisors is an integer number (5792640).

Almost surely, 2^145238562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145238562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185364480).

145238562 is an abundant number, since it is smaller than the sum of its proper divisors (225490398).

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

145238562 is a wasteful number, since it uses less digits than its factorization.

145238562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1958 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 145238562 is about 12051.4962556522. The cubic root of 145238562 is about 525.6467458059.

The spelling of 145238562 in words is "one hundred forty-five million, two hundred thirty-eight thousand, five hundred sixty-two".