1214148549 has 4 divisors (see below), whose sum is σ = 1618864736. Its totient is φ = 809432364.

The previous prime is 1214148547. The next prime is 1214148553. The reversal of 1214148549 is 9458414121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1214148549 - 2¹ = 1214148547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214148547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202358089 + ... + 202358094.

It is an arithmetic number, because the mean of its divisors is an integer number (404716184).

Almost surely, 2^1214148549 is an apocalyptic number.

It is an amenable number.

1214148549 is a deficient number, since it is larger than the sum of its proper divisors (404716187).

1214148549 is an equidigital number, since it uses as much as digits as its factorization.

1214148549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404716186.

The product of its digits is 46080, while the sum is 39.

The square root of 1214148549 is about 34844.6344363088. The cubic root of 1214148549 is about 1066.8186721634.

The spelling of 1214148549 in words is "one billion, two hundred fourteen million, one hundred forty-eight thousand, five hundred forty-nine".