121151436 has 24 divisors (see below), whose sum is σ = 323070720. Its totient is φ = 34614672.

The previous prime is 121151341. The next prime is 121151461. The reversal of 121151436 is 634151121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721056 + ... + 721223.

It is an arithmetic number, because the mean of its divisors is an integer number (13461280).

Almost surely, 2^121151436 is an apocalyptic number.

It is an amenable number.

121151436 is an abundant number, since it is smaller than the sum of its proper divisors (201919284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121151436 is a wasteful number, since it uses less digits than its factorization.

121151436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442293 (or 1442291 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 121151436 is about 11006.8813021673. The cubic root of 121151436 is about 494.8149987165.

The spelling of 121151436 in words is "one hundred twenty-one million, one hundred fifty-one thousand, four hundred thirty-six".