163401477 has 4 divisors (see below), whose sum is σ = 217868640. Its totient is φ = 108934316.

The previous prime is 163401421. The next prime is 163401529. The reversal of 163401477 is 774104361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163401477 - 2⁸ = 163401221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163408477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27233577 + ... + 27233582.

It is an arithmetic number, because the mean of its divisors is an integer number (54467160).

Almost surely, 2^163401477 is an apocalyptic number.

It is an amenable number.

163401477 is a deficient number, since it is larger than the sum of its proper divisors (54467163).

163401477 is an equidigital number, since it uses as much as digits as its factorization.

163401477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54467162.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 163401477 is about 12782.8587178299. The cubic root of 163401477 is about 546.7036741669.

It can be divided in two parts, 163401 and 477, that added together give a triangular number (163878 = T₅₇₂).

The spelling of 163401477 in words is "one hundred sixty-three million, four hundred one thousand, four hundred seventy-seven".