145284237 has 24 divisors (see below), whose sum is σ = 246320256. Its totient is φ = 80774496.

The previous prime is 145284233. The next prime is 145284257. The reversal of 145284237 is 732482541.

It is a happy number.

145284237 is a `hidden beast` number, since 145 + 284 + 237 = 666.

It is not a de Polignac number, because 145284237 - 2² = 145284233 is a prime.

It is a super-2 number, since 2×145284237² = 42215019041344338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145284233) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28833 + ... + 33494.

It is an arithmetic number, because the mean of its divisors is an integer number (10263344).

Almost surely, 2^145284237 is an apocalyptic number.

It is an amenable number.

145284237 is a deficient number, since it is larger than the sum of its proper divisors (101036019).

145284237 is a wasteful number, since it uses less digits than its factorization.

145284237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62377 (or 62374 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 145284237 is about 12053.3910996035. The cubic root of 145284237 is about 525.7018422817.

The spelling of 145284237 in words is "one hundred forty-five million, two hundred eighty-four thousand, two hundred thirty-seven".