145557829 has 4 divisors (see below), whose sum is σ = 145869984. Its totient is φ = 145245676.

The previous prime is 145557827. The next prime is 145557851. The reversal of 145557829 is 928755541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145557829 - 2¹ = 145557827 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 (145557821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155377 + ... + 156310.

It is an arithmetic number, because the mean of its divisors is an integer number (36467496).

Almost surely, 2^145557829 is an apocalyptic number.

It is an amenable number.

145557829 is a deficient number, since it is larger than the sum of its proper divisors (312155).

145557829 is an equidigital number, since it uses as much as digits as its factorization.

145557829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312154.

The product of its digits is 504000, while the sum is 46.

The square root of 145557829 is about 12064.7349328529. The cubic root of 145557829 is about 526.0316271518.

The spelling of 145557829 in words is "one hundred forty-five million, five hundred fifty-seven thousand, eight hundred twenty-nine".