161054475 has 24 divisors (see below), whose sum is σ = 266768640. Its totient is φ = 85737120.

The previous prime is 161054473. The next prime is 161054497. The reversal of 161054475 is 574450161.

It is not a de Polignac number, because 161054475 - 2¹ = 161054473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161054473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46866 + ... + 50184.

It is an arithmetic number, because the mean of its divisors is an integer number (11115360).

Almost surely, 2^161054475 is an apocalyptic number.

161054475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161054475 is a deficient number, since it is larger than the sum of its proper divisors (105714165).

161054475 is a wasteful number, since it uses less digits than its factorization.

161054475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3974 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 161054475 is about 12690.7239746202. The cubic root of 161054475 is about 544.0735318622.

The spelling of 161054475 in words is "one hundred sixty-one million, fifty-four thousand, four hundred seventy-five".