161054923 has 8 divisors (see below), whose sum is σ = 171873792. Its totient is φ = 150385536.

The previous prime is 161054867. The next prime is 161054941. The reversal of 161054923 is 329450161.

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

It is not a de Polignac number, because 161054923 - 2¹³ = 161046731 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161054983) 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, 35140 + ... + 39457.

It is an arithmetic number, because the mean of its divisors is an integer number (21484224).

Almost surely, 2^161054923 is an apocalyptic number.

161054923 is a deficient number, since it is larger than the sum of its proper divisors (10818869).

161054923 is a wasteful number, since it uses less digits than its factorization.

161054923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74741.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 161054923 is about 12690.7416252952. The cubic root of 161054923 is about 544.0740363389.

The spelling of 161054923 in words is "one hundred sixty-one million, fifty-four thousand, nine hundred twenty-three".