1214158145 has 8 divisors (see below), whose sum is σ = 1496368104. Its totient is φ = 945074304.

The previous prime is 1214158123. The next prime is 1214158147. The reversal of 1214158145 is 5418514121.

It can be written as a sum of positive squares in 4 ways, for example, as 401281024 + 812877121 = 20032^2 + 28511^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1214158145 - 2²² = 1209963841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214158147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3281324 + ... + 3281693.

It is an arithmetic number, because the mean of its divisors is an integer number (187046013).

Almost surely, 2^1214158145 is an apocalyptic number.

It is an amenable number.

1214158145 is a deficient number, since it is larger than the sum of its proper divisors (282209959).

1214158145 is an equidigital number, since it uses as much as digits as its factorization.

1214158145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563059.

The product of its digits is 6400, while the sum is 32.

The square root of 1214158145 is about 34844.7721329901. The cubic root of 1214158145 is about 1066.8214826830.

The spelling of 1214158145 in words is "one billion, two hundred fourteen million, one hundred fifty-eight thousand, one hundred forty-five".