145730551 has 8 divisors (see below), whose sum is σ = 153660800. Its totient is φ = 137826360.

The previous prime is 145730537. The next prime is 145730581. The reversal of 145730551 is 155037541.

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 145730551 - 2¹¹ = 145728503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145730581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5566 + ... + 17956.

It is an arithmetic number, because the mean of its divisors is an integer number (19207600).

Almost surely, 2^145730551 is an apocalyptic number.

145730551 is a deficient number, since it is larger than the sum of its proper divisors (7930249).

145730551 is a wasteful number, since it uses less digits than its factorization.

145730551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13029.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 145730551 is about 12071.8909454981. The cubic root of 145730551 is about 526.2396116605.

The spelling of 145730551 in words is "one hundred forty-five million, seven hundred thirty thousand, five hundred fifty-one".