257223034 has 4 divisors (see below), whose sum is σ = 385834554. Its totient is φ = 128611516.

The previous prime is 257222957. The next prime is 257223091. The reversal of 257223034 is 430322752.

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

It can be written as a sum of positive squares in only one way, i.e., 241895809 + 15327225 = 15553^2 + 3915^2 .

It is a junction number, because it is equal to n+sod(n) for n = 257222993 and 257223011.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64305757 + ... + 64305760.

Almost surely, 2^257223034 is an apocalyptic number.

257223034 is a deficient number, since it is larger than the sum of its proper divisors (128611520).

257223034 is a wasteful number, since it uses less digits than its factorization.

257223034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128611519.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 257223034 is about 16038.1742726534. The cubic root of 257223034 is about 635.9699842776.

Adding to 257223034 its reverse (430322752), we get a palindrome (687545786).

The spelling of 257223034 in words is "two hundred fifty-seven million, two hundred twenty-three thousand, thirty-four".