245123546 has 4 divisors (see below), whose sum is σ = 367685322. Its totient is φ = 122561772.

The previous prime is 245123539. The next prime is 245123591. The reversal of 245123546 is 645321542.

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., 245079025 + 44521 = 15655^2 + 211^2 .

It is a super-2 number, since 2×245123546² = 120171105607228232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61280885 + ... + 61280888.

Almost surely, 2^245123546 is an apocalyptic number.

245123546 is a deficient number, since it is larger than the sum of its proper divisors (122561776).

245123546 is a wasteful number, since it uses less digits than its factorization.

245123546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122561775.

The product of its digits is 28800, while the sum is 32.

The square root of 245123546 is about 15656.4218773001. The cubic root of 245123546 is about 625.8376361369.

The spelling of 245123546 in words is "two hundred forty-five million, one hundred twenty-three thousand, five hundred forty-six".