163541477 has 16 divisors (see below), whose sum is σ = 186772608. Its totient is φ = 141746880.

The previous prime is 163541449. The next prime is 163541489. The reversal of 163541477 is 774145361.

It is not a de Polignac number, because 163541477 - 2¹⁶ = 163475941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163541477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163541407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93503 + ... + 95235.

It is an arithmetic number, because the mean of its divisors is an integer number (11673288).

Almost surely, 2^163541477 is an apocalyptic number.

It is an amenable number.

163541477 is a deficient number, since it is larger than the sum of its proper divisors (23231131).

163541477 is a wasteful number, since it uses less digits than its factorization.

163541477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its digits is 70560, while the sum is 38.

The square root of 163541477 is about 12788.3336287415. Note that the first 3 decimals coincide. The cubic root of 163541477 is about 546.8597655054.

The spelling of 163541477 in words is "one hundred sixty-three million, five hundred forty-one thousand, four hundred seventy-seven".