1214511145 has 8 divisors (see below), whose sum is σ = 1457739720. Its totient is φ = 971391360.

The previous prime is 1214511121. The next prime is 1214511167. The reversal of 1214511145 is 5411154121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 246741264 + 967769881 = 15708^2 + 31109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1214511145 - 2¹¹ = 1214509097 is a prime.

It is a super-2 number, since 2×1214511145² = 2950074642658422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 49285.

It is an arithmetic number, because the mean of its divisors is an integer number (182217465).

Almost surely, 2^1214511145 is an apocalyptic number.

It is an amenable number.

1214511145 is a deficient number, since it is larger than the sum of its proper divisors (243228575).

1214511145 is an equidigital number, since it uses as much as digits as its factorization.

1214511145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54395.

The product of its digits is 800, while the sum is 25.

The square root of 1214511145 is about 34849.8370871372. The cubic root of 1214511145 is about 1066.9248606202.

Adding to 1214511145 its reverse (5411154121), we get a palindrome (6625665266).

It can be divided in two parts, 121 and 4511145, that multiplied together give a palindrome (545848545).

The spelling of 1214511145 in words is "one billion, two hundred fourteen million, five hundred eleven thousand, one hundred forty-five".