147342019661 has 2 divisors, whose sum is σ = 147342019662. Its totient is φ = 147342019660.

The previous prime is 147342019637. The next prime is 147342019723. The reversal of 147342019661 is 166910243741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95045190436 + 52296829225 = 308294^2 + 228685^2 .

It is a cyclic number.

It is not a de Polignac number, because 147342019661 - 2⁶ = 147342019597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147342019631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73671009830 + 73671009831.

It is an arithmetic number, because the mean of its divisors is an integer number (73671009831).

Almost surely, 2^147342019661 is an apocalyptic number.

It is an amenable number.

147342019661 is a deficient number, since it is larger than the sum of its proper divisors (1).

147342019661 is an equidigital number, since it uses as much as digits as its factorization.

147342019661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 147342019661 in words is "one hundred forty-seven billion, three hundred forty-two million, nineteen thousand, six hundred sixty-one".