15230057 has 4 divisors (see below), whose sum is σ = 15263556. Its totient is φ = 15196560.

The previous prime is 15230023. The next prime is 15230069. The reversal of 15230057 is 75003251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1510441 + 13719616 = 1229^2 + 3704^2 .

It is a cyclic number.

It is not a de Polignac number, because 15230057 - 2¹⁴ = 15213673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15230087) 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, 16058 + ... + 16979.

It is an arithmetic number, because the mean of its divisors is an integer number (3815889).

Almost surely, 2^15230057 is an apocalyptic number.

It is an amenable number.

15230057 is a deficient number, since it is larger than the sum of its proper divisors (33499).

15230057 is an equidigital number, since it uses as much as digits as its factorization.

15230057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33498.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 15230057 is about 3902.5705631032. The cubic root of 15230057 is about 247.8756367882.

The spelling of 15230057 in words is "fifteen million, two hundred thirty thousand, fifty-seven".