245122646 has 4 divisors (see below), whose sum is σ = 367683972. Its totient is φ = 122561322.

The previous prime is 245122627. The next prime is 245122663. The reversal of 245122646 is 646221542.

245122646 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×245122646² = 120170223164082632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61280660 + ... + 61280663.

It is an arithmetic number, because the mean of its divisors is an integer number (91920993).

Almost surely, 2^245122646 is an apocalyptic number.

245122646 is a deficient number, since it is larger than the sum of its proper divisors (122561326).

245122646 is a wasteful number, since it uses less digits than its factorization.

245122646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122561325.

The product of its digits is 23040, while the sum is 32.

The square root of 245122646 is about 15656.3931350742. The cubic root of 245122646 is about 625.8368701904.

The spelling of 245122646 in words is "two hundred forty-five million, one hundred twenty-two thousand, six hundred forty-six".