147422661 has 4 divisors (see below), whose sum is σ = 196563552. Its totient is φ = 98281772.

The previous prime is 147422647. The next prime is 147422699. The reversal of 147422661 is 166224741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166224741 = 3 ⋅55408247.

It is a cyclic number.

It is not a de Polignac number, because 147422661 - 2⁵ = 147422629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147422621) 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, 24570441 + ... + 24570446.

It is an arithmetic number, because the mean of its divisors is an integer number (49140888).

Almost surely, 2^147422661 is an apocalyptic number.

It is an amenable number.

147422661 is a deficient number, since it is larger than the sum of its proper divisors (49140891).

147422661 is an equidigital number, since it uses as much as digits as its factorization.

147422661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49140890.

The product of its digits is 16128, while the sum is 33.

The square root of 147422661 is about 12141.7733877717. The cubic root of 147422661 is about 528.2685409393.

The spelling of 147422661 in words is "one hundred forty-seven million, four hundred twenty-two thousand, six hundred sixty-one".