1214255500 has 48 divisors (see below), whose sum is σ = 2713654944. Its totient is φ = 474398400.

The previous prime is 1214255473. The next prime is 1214255527. The reversal of 1214255500 is 55524121.

It is an interprime number because it is at equal distance from previous prime (1214255473) and next prime (1214255527).

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 6739 + ... + 49738.

It is an arithmetic number, because the mean of its divisors is an integer number (56534478).

Almost surely, 2^1214255500 is an apocalyptic number.

1214255500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214255500 is an abundant number, since it is smaller than the sum of its proper divisors (1499399444).

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

1214255500 is a wasteful number, since it uses less digits than its factorization.

1214255500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56539 (or 56527 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1214255500 is about 34846.1690864290. The cubic root of 1214255500 is about 1066.8499956160.

Adding to 1214255500 its reverse (55524121), we get a palindrome (1269779621).

The spelling of 1214255500 in words is "one billion, two hundred fourteen million, two hundred fifty-five thousand, five hundred".