145842897285 has 12 divisors (see below), whose sum is σ = 252794355372. Its totient is φ = 77782878528.

The previous prime is 145842897281. The next prime is 145842897289. The reversal of 145842897285 is 582798248541.

145842897285 is a `hidden beast` number, since 1 + 4 + 584 + 28 + 9 + 7 + 28 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (145842897281) and next prime (145842897289).

It can be written as a sum of positive squares in 2 ways, for example, as 27704270916 + 118138626369 = 166446^2 + 343713^2 .

It is not a de Polignac number, because 145842897285 - 2² = 145842897281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145842897281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1620476592 + ... + 1620476681.

It is an arithmetic number, because the mean of its divisors is an integer number (21066196281).

Almost surely, 2^145842897285 is an apocalyptic number.

145842897285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145842897285 is a deficient number, since it is larger than the sum of its proper divisors (106951458087).

145842897285 is a wasteful number, since it uses less digits than its factorization.

145842897285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240953284 (or 3240953281 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 145842897285 in words is "one hundred forty-five billion, eight hundred forty-two million, eight hundred ninety-seven thousand, two hundred eighty-five".