145600551 has 16 divisors (see below), whose sum is σ = 216829920. Its totient is φ = 96560640.

The previous prime is 145600549. The next prime is 145600577. The reversal of 145600551 is 155006541.

It is a happy number.

145600551 is a `hidden beast` number, since 1 + 4 + 5 + 600 + 5 + 51 = 666.

It is not a de Polignac number, because 145600551 - 2¹ = 145600549 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145600541) 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 15 ways as a sum of consecutive naturals, for example, 8760 + ... + 19181.

It is an arithmetic number, because the mean of its divisors is an integer number (13551870).

Almost surely, 2^145600551 is an apocalyptic number.

145600551 is a deficient number, since it is larger than the sum of its proper divisors (71229369).

145600551 is a wasteful number, since it uses less digits than its factorization.

145600551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28143 (or 28137 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 145600551 is about 12066.5053350173. The cubic root of 145600551 is about 526.0830864813.

The spelling of 145600551 in words is "one hundred forty-five million, six hundred thousand, five hundred fifty-one".