1216146310 has 32 divisors (see below), whose sum is σ = 2206128960. Its totient is φ = 482683008.

The previous prime is 1216146301. The next prime is 1216146311. The reversal of 1216146310 is 136416121.

It is a super-2 number, since 2×1216146310² = 2958023694653232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216146311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787399 + ... + 788941.

It is an arithmetic number, because the mean of its divisors is an integer number (68941530).

Almost surely, 2^1216146310 is an apocalyptic number.

1216146310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216146310 is a deficient number, since it is larger than the sum of its proper divisors (989982650).

1216146310 is a wasteful number, since it uses less digits than its factorization.

1216146310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1216146310 is about 34873.2893487265. The cubic root of 1216146310 is about 1067.4034663076.

The spelling of 1216146310 in words is "one billion, two hundred sixteen million, one hundred forty-six thousand, three hundred ten".