1151121516 has 12 divisors (see below), whose sum is σ = 2685950232. Its totient is φ = 383707168.

The previous prime is 1151121487. The next prime is 1151121529. The reversal of 1151121516 is 6151211511.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47963385 + ... + 47963408.

It is an arithmetic number, because the mean of its divisors is an integer number (223829186).

Almost surely, 2^1151121516 is an apocalyptic number.

It is an amenable number.

1151121516 is an abundant number, since it is smaller than the sum of its proper divisors (1534828716).

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

1151121516 is a wasteful number, since it uses less digits than its factorization.

1151121516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95926800 (or 95926798 counting only the distinct ones).

The product of its digits is 300, while the sum is 24.

The square root of 1151121516 is about 33928.1817373109. The cubic root of 1151121516 is about 1048.0300224000.

The spelling of 1151121516 in words is "one billion, one hundred fifty-one million, one hundred twenty-one thousand, five hundred sixteen".