147768541 has 2 divisors, whose sum is σ = 147768542. Its totient is φ = 147768540.

The previous prime is 147768527. The next prime is 147768547. The reversal of 147768541 is 145867741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92563641 + 55204900 = 9621^2 + 7430^2 .

It is a cyclic number.

It is not a de Polignac number, because 147768541 - 2²¹ = 145671389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147768547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73884270 + 73884271.

It is an arithmetic number, because the mean of its divisors is an integer number (73884271).

Almost surely, 2^147768541 is an apocalyptic number.

It is an amenable number.

147768541 is a deficient number, since it is larger than the sum of its proper divisors (1).

147768541 is an equidigital number, since it uses as much as digits as its factorization.

147768541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 147768541 is about 12156.0084320471. The cubic root of 147768541 is about 528.6813558387.

The spelling of 147768541 in words is "one hundred forty-seven million, seven hundred sixty-eight thousand, five hundred forty-one".