168249654 has 12 divisors (see below), whose sum is σ = 364540956. Its totient is φ = 56083212.

The previous prime is 168249649. The next prime is 168249659. The reversal of 168249654 is 456942861.

It is an interprime number because it is at equal distance from previous prime (168249649) and next prime (168249659).

It is a super-2 number, since 2×168249654² = 56615892142239432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168249659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4673584 + ... + 4673619.

It is an arithmetic number, because the mean of its divisors is an integer number (30378413).

Almost surely, 2^168249654 is an apocalyptic number.

168249654 is an abundant number, since it is smaller than the sum of its proper divisors (196291302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168249654 is a wasteful number, since it uses less digits than its factorization.

168249654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9347211 (or 9347208 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 168249654 is about 12971.1084337461. The cubic root of 168249654 is about 552.0580239888.

The spelling of 168249654 in words is "one hundred sixty-eight million, two hundred forty-nine thousand, six hundred fifty-four".