122147847 has 12 divisors (see below), whose sum is σ = 176533344. Its totient is φ = 81386880.

The previous prime is 122147833. The next prime is 122147849. The reversal of 122147847 is 748741221.

It is not a de Polignac number, because 122147847 - 2¹⁵ = 122115079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122147849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25138 + ... + 29600.

It is an arithmetic number, because the mean of its divisors is an integer number (14711112).

Almost surely, 2^122147847 is an apocalyptic number.

122147847 is a deficient number, since it is larger than the sum of its proper divisors (54385497).

122147847 is a wasteful number, since it uses less digits than its factorization.

122147847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510 (or 7507 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 122147847 is about 11052.0517099767. The cubic root of 122147847 is about 496.1678333675.

The spelling of 122147847 in words is "one hundred twenty-two million, one hundred forty-seven thousand, eight hundred forty-seven".