161425822 has 8 divisors (see below), whose sum is σ = 252666576. Its totient is φ = 77203632.

The previous prime is 161425801. The next prime is 161425883. The reversal of 161425822 is 228524161.

161425822 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754583 + ... + 1754674.

It is an arithmetic number, because the mean of its divisors is an integer number (31583322).

Almost surely, 2^161425822 is an apocalyptic number.

161425822 is a deficient number, since it is larger than the sum of its proper divisors (91240754).

161425822 is a wasteful number, since it uses less digits than its factorization.

161425822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509282.

The product of its digits is 7680, while the sum is 31.

The square root of 161425822 is about 12705.3461975658. The cubic root of 161425822 is about 544.4913718293.

Adding to 161425822 its reverse (228524161), we get a palindrome (389949983).

The spelling of 161425822 in words is "one hundred sixty-one million, four hundred twenty-five thousand, eight hundred twenty-two".