161504654 has 8 divisors (see below), whose sum is σ = 250610760. Its totient is φ = 77967736.

The previous prime is 161504627. The next prime is 161504659. The reversal of 161504654 is 456405161.

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

It is a self number, because there is not a number n which added to its sum of digits gives 161504654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161504659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392224 + ... + 1392339.

It is an arithmetic number, because the mean of its divisors is an integer number (31326345).

Almost surely, 2^161504654 is an apocalyptic number.

161504654 is a deficient number, since it is larger than the sum of its proper divisors (89106106).

161504654 is a wasteful number, since it uses less digits than its factorization.

161504654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784594.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 161504654 is about 12708.4481350006. The cubic root of 161504654 is about 544.5799911882.

The spelling of 161504654 in words is "one hundred sixty-one million, five hundred four thousand, six hundred fifty-four".