245211938 has 4 divisors (see below), whose sum is σ = 367817910. Its totient is φ = 122605968.

The previous prime is 245211931. The next prime is 245211943. The reversal of 245211938 is 839112542.

245211938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 176438089 + 68773849 = 13283^2 + 8293^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245211898 and 245211907.

It is not an unprimeable number, because it can be changed into a prime (245211931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61302983 + ... + 61302986.

Almost surely, 2^245211938 is an apocalyptic number.

245211938 is a deficient number, since it is larger than the sum of its proper divisors (122605972).

245211938 is a wasteful number, since it uses less digits than its factorization.

245211938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122605971.

The product of its digits is 17280, while the sum is 35.

The square root of 245211938 is about 15659.2444900768. The cubic root of 245211938 is about 625.9128531628.

The spelling of 245211938 in words is "two hundred forty-five million, two hundred eleven thousand, nine hundred thirty-eight".