147622823 has 4 divisors (see below), whose sum is σ = 148506960. Its totient is φ = 146738688.

The previous prime is 147622819. The next prime is 147622841. The reversal of 147622823 is 328226741.

147622823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328226741 = 37 ⋅8870993.

It is a cyclic number.

It is not a de Polignac number, because 147622823 - 2² = 147622819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147622873) 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, 441818 + ... + 442151.

It is an arithmetic number, because the mean of its divisors is an integer number (37126740).

Almost surely, 2^147622823 is an apocalyptic number.

147622823 is a deficient number, since it is larger than the sum of its proper divisors (884137).

147622823 is an equidigital number, since it uses as much as digits as its factorization.

147622823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884136.

The product of its digits is 32256, while the sum is 35.

The square root of 147622823 is about 12150.0132921738. The cubic root of 147622823 is about 528.5075170177.

The spelling of 147622823 in words is "one hundred forty-seven million, six hundred twenty-two thousand, eight hundred twenty-three".