1154236216 has 32 divisors (see below), whose sum is σ = 2618857440. Its totient is φ = 465573888.

The previous prime is 1154236177. The next prime is 1154236261. The reversal of 1154236216 is 6126324511.

It is a happy number.

It is a super-2 number, since 2×1154236216² = 2664522484651997312, which contains 22 as substring.

It is a congruent 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, 605265 + ... + 607168.

It is an arithmetic number, because the mean of its divisors is an integer number (81839295).

Almost surely, 2^1154236216 is an apocalyptic number.

It is an amenable number.

1154236216 is an abundant number, since it is smaller than the sum of its proper divisors (1464621224).

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

1154236216 is a wasteful number, since it uses less digits than its factorization.

1154236216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212463 (or 1212459 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 1154236216 is about 33974.0520986237. The cubic root of 1154236216 is about 1048.9744229426.

The spelling of 1154236216 in words is "one billion, one hundred fifty-four million, two hundred thirty-six thousand, two hundred sixteen".