145442115 has 64 divisors (see below), whose sum is σ = 318259200. Its totient is φ = 61368192.

The previous prime is 145442069. The next prime is 145442147. The reversal of 145442115 is 511244541.

145442115 is a `hidden beast` number, since 1 + 4 + 544 + 2 + 115 = 666.

It is not a de Polignac number, because 145442115 - 2¹¹ = 145440067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6366 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (4972800).

Almost surely, 2^145442115 is an apocalyptic number.

145442115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145442115 is an abundant number, since it is smaller than the sum of its proper divisors (172817085).

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

145442115 is a wasteful number, since it uses less digits than its factorization.

145442115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11873 (or 11867 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 145442115 is about 12059.9384326787. The cubic root of 145442115 is about 525.8921972061.

Adding to 145442115 its reverse (511244541), we get a palindrome (656686656).

It can be divided in two parts, 1454421 and 15, that multiplied together give a triangular number (21816315 = T₆₆₀₅).

The spelling of 145442115 in words is "one hundred forty-five million, four hundred forty-two thousand, one hundred fifteen".