163246425 has 12 divisors (see below), whose sum is σ = 269900880. Its totient is φ = 87064720.

The previous prime is 163246417. The next prime is 163246453. The reversal of 163246425 is 524642361.

It is not a de Polignac number, because 163246425 - 2³ = 163246417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1088235 + ... + 1088384.

It is an arithmetic number, because the mean of its divisors is an integer number (22491740).

Almost surely, 2^163246425 is an apocalyptic number.

163246425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163246425 is a deficient number, since it is larger than the sum of its proper divisors (106654455).

163246425 is a wasteful number, since it uses less digits than its factorization.

163246425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176632 (or 2176627 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 163246425 is about 12776.7924378539. The cubic root of 163246425 is about 546.5306966929.

Adding to 163246425 its reverse (524642361), we get a palindrome (687888786).

The spelling of 163246425 in words is "one hundred sixty-three million, two hundred forty-six thousand, four hundred twenty-five".