121767147 has 12 divisors (see below), whose sum is σ = 176394400. Its totient is φ = 80943408.

The previous prime is 121767137. The next prime is 121767161. The reversal of 121767147 is 741767121.

It is not a de Polignac number, because 121767147 - 2⁴ = 121767131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121767127) 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, 16243 + ... + 22524.

Almost surely, 2^121767147 is an apocalyptic number.

121767147 is a deficient number, since it is larger than the sum of its proper divisors (54627253).

121767147 is a wasteful number, since it uses less digits than its factorization.

121767147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39122 (or 39119 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The square root of 121767147 is about 11034.8152227393. The cubic root of 121767147 is about 495.6518257063.

The spelling of 121767147 in words is "one hundred twenty-one million, seven hundred sixty-seven thousand, one hundred forty-seven".