145059551 has 24 divisors (see below), whose sum is σ = 189643104. Its totient is φ = 109771200.

The previous prime is 145059529. The next prime is 145059553. The reversal of 145059551 is 155950541.

It is a de Polignac number, because none of the positive numbers 2^k-145059551 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145059553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9701 + ... + 19601.

It is an arithmetic number, because the mean of its divisors is an integer number (7901796).

Almost surely, 2^145059551 is an apocalyptic number.

145059551 is a deficient number, since it is larger than the sum of its proper divisors (44583553).

145059551 is a wasteful number, since it uses less digits than its factorization.

145059551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951 (or 9944 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 145059551 is about 12044.0670456453. The cubic root of 145059551 is about 525.4306984197.

The spelling of 145059551 in words is "one hundred forty-five million, fifty-nine thousand, five hundred fifty-one".