1214155450 has 12 divisors (see below), whose sum is σ = 2258329230. Its totient is φ = 485662160.

The previous prime is 1214155417. The next prime is 1214155471. The reversal of 1214155450 is 545514121.

It can be written as a sum of positive squares in 3 ways, for example, as 1137645441 + 76510009 = 33729^2 + 8747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12141505 + ... + 12141604.

Almost surely, 2^1214155450 is an apocalyptic number.

1214155450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214155450 is a deficient number, since it is larger than the sum of its proper divisors (1044173780).

1214155450 is a wasteful number, since it uses less digits than its factorization.

1214155450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24283121 (or 24283116 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1214155450 is about 34844.7334614573. The cubic root of 1214155450 is about 1066.8206933608.

Adding to 1214155450 its reverse (545514121), we get a palindrome (1759669571).

The spelling of 1214155450 in words is "one billion, two hundred fourteen million, one hundred fifty-five thousand, four hundred fifty".