1187215210 has 16 divisors (see below), whose sum is σ = 2168883936. Its totient is φ = 467797968.

The previous prime is 1187215199. The next prime is 1187215217. The reversal of 1187215210 is 125127811.

It is not an unprimeable number, because it can be changed into a prime (1187215217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885312 + ... + 886651.

It is an arithmetic number, because the mean of its divisors is an integer number (135555246).

Almost surely, 2^1187215210 is an apocalyptic number.

1187215210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1187215210 is a deficient number, since it is larger than the sum of its proper divisors (981668726).

1187215210 is a wasteful number, since it uses less digits than its factorization.

1187215210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772037.

The product of its (nonzero) digits is 1120, while the sum is 28.

The square root of 1187215210 is about 34455.9894648231. The cubic root of 1187215210 is about 1058.8712352465.

The spelling of 1187215210 in words is "one billion, one hundred eighty-seven million, two hundred fifteen thousand, two hundred ten".