1214251140 has 48 divisors (see below), whose sum is σ = 3404096640. Its totient is φ = 323400960.

The previous prime is 1214251127. The next prime is 1214251151. The reversal of 1214251140 is 411524121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38280 + ... + 62400.

It is an arithmetic number, because the mean of its divisors is an integer number (70918680).

Almost surely, 2^1214251140 is an apocalyptic number.

1214251140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214251140 is an abundant number, since it is smaller than the sum of its proper divisors (2189845500).

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

1214251140 is a wasteful number, since it uses less digits than its factorization.

1214251140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24972 (or 24970 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1214251140 is about 34846.1065256938. The cubic root of 1214251140 is about 1066.8487187097.

Adding to 1214251140 its reverse (411524121), we get a palindrome (1625775261).

The spelling of 1214251140 in words is "one billion, two hundred fourteen million, two hundred fifty-one thousand, one hundred forty".