145502551 has 8 divisors (see below), whose sum is σ = 153284400. Its totient is φ = 137733120.

The previous prime is 145502527. The next prime is 145502557. The reversal of 145502551 is 155205541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145502551 - 2⁹ = 145502039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145502557) 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 7 ways as a sum of consecutive naturals, for example, 30231 + ... + 34711.

It is an arithmetic number, because the mean of its divisors is an integer number (19160550).

Almost surely, 2^145502551 is an apocalyptic number.

145502551 is a deficient number, since it is larger than the sum of its proper divisors (7781849).

145502551 is a wasteful number, since it uses less digits than its factorization.

145502551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 145502551 is about 12062.4438237034. The cubic root of 145502551 is about 525.9650289752.

The spelling of 145502551 in words is "one hundred forty-five million, five hundred two thousand, five hundred fifty-one".