161132001 has 8 divisors (see below), whose sum is σ = 227480544. Its totient is φ = 101102400.

The previous prime is 161131991. The next prime is 161132021. The reversal of 161132001 is 100231161.

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

It is not a de Polignac number, because 161132001 - 2⁹ = 161131489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161132021) 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, 1579675 + ... + 1579776.

It is an arithmetic number, because the mean of its divisors is an integer number (28435068).

Almost surely, 2^161132001 is an apocalyptic number.

It is an amenable number.

161132001 is a deficient number, since it is larger than the sum of its proper divisors (66348543).

161132001 is a wasteful number, since it uses less digits than its factorization.

161132001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159471.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 161132001 is about 12693.7780428051. The cubic root of 161132001 is about 544.1608171911.

Adding to 161132001 its reverse (100231161), we get a palindrome (261363162).

The spelling of 161132001 in words is "one hundred sixty-one million, one hundred thirty-two thousand, one".