161468407 has 4 divisors (see below), whose sum is σ = 165832456. Its totient is φ = 157104360.

The previous prime is 161468399. The next prime is 161468423. The reversal of 161468407 is 704864161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161468407 - 2³ = 161468399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 4364011 = 161468407 / (1 + 6 + 1 + 4 + 6 + 8 + 4 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161468467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181969 + ... + 2182042.

It is an arithmetic number, because the mean of its divisors is an integer number (41458114).

Almost surely, 2^161468407 is an apocalyptic number.

161468407 is a deficient number, since it is larger than the sum of its proper divisors (4364049).

161468407 is an equidigital number, since it uses as much as digits as its factorization.

161468407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364048.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 161468407 is about 12707.0219563830. The cubic root of 161468407 is about 544.5392475370.

The spelling of 161468407 in words is "one hundred sixty-one million, four hundred sixty-eight thousand, four hundred seven".