163654413 has 8 divisors (see below), whose sum is σ = 234991008. Its totient is φ = 100710384.

The previous prime is 163654409. The next prime is 163654417. The reversal of 163654413 is 314456361.

It is an interprime number because it is at equal distance from previous prime (163654409) and next prime (163654417).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163654413 - 2² = 163654409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163654417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2098095 + ... + 2098172.

It is an arithmetic number, because the mean of its divisors is an integer number (29373876).

Almost surely, 2^163654413 is an apocalyptic number.

163654413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163654413 is a deficient number, since it is larger than the sum of its proper divisors (71336595).

163654413 is a wasteful number, since it uses less digits than its factorization.

163654413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4196283.

The product of its digits is 25920, while the sum is 33.

The square root of 163654413 is about 12792.7484537139. The cubic root of 163654413 is about 546.9856172559.

The spelling of 163654413 in words is "one hundred sixty-three million, six hundred fifty-four thousand, four hundred thirteen".