1622145179 has 4 divisors (see below), whose sum is σ = 1622302920. Its totient is φ = 1621987440.

The previous prime is 1622145167. The next prime is 1622145181. The reversal of 1622145179 is 9715412261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9715412261 = 8573 ⋅1133257.

It is a cyclic number.

It is not a de Polignac number, because 1622145179 - 2⁴ = 1622145163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622145139) 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, 62282 + ... + 84399.

It is an arithmetic number, because the mean of its divisors is an integer number (405575730).

Almost surely, 2^1622145179 is an apocalyptic number.

1622145179 is a deficient number, since it is larger than the sum of its proper divisors (157741).

1622145179 is a wasteful number, since it uses less digits than its factorization.

1622145179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157740.

The product of its digits is 30240, while the sum is 38.

The square root of 1622145179 is about 40275.8634792601. The cubic root of 1622145179 is about 1174.9784644310.

The spelling of 1622145179 in words is "one billion, six hundred twenty-two million, one hundred forty-five thousand, one hundred seventy-nine".