147868751 has 2 divisors, whose sum is σ = 147868752. Its totient is φ = 147868750.

The previous prime is 147868661. The next prime is 147868759. The reversal of 147868751 is 157868741.

It is a strong prime.

It is an emirp because it is prime and its reverse (157868741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147868751 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 147868696 and 147868705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147868759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73934375 + 73934376.

It is an arithmetic number, because the mean of its divisors is an integer number (73934376).

Almost surely, 2^147868751 is an apocalyptic number.

147868751 is a deficient number, since it is larger than the sum of its proper divisors (1).

147868751 is an equidigital number, since it uses as much as digits as its factorization.

147868751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 47.

The square root of 147868751 is about 12160.1295634545. The cubic root of 147868751 is about 528.8008381651.

The spelling of 147868751 in words is "one hundred forty-seven million, eight hundred sixty-eight thousand, seven hundred fifty-one".