1214148878 has 4 divisors (see below), whose sum is σ = 1821223320. Its totient is φ = 607074438.

The previous prime is 1214148869. The next prime is 1214148889. The reversal of 1214148878 is 8788414121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303537218 + ... + 303537221.

It is an arithmetic number, because the mean of its divisors is an integer number (455305830).

Almost surely, 2^1214148878 is an apocalyptic number.

1214148878 is a deficient number, since it is larger than the sum of its proper divisors (607074442).

1214148878 is an equidigital number, since it uses as much as digits as its factorization.

1214148878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607074441.

The product of its digits is 114688, while the sum is 44.

The square root of 1214148878 is about 34844.6391572649. The cubic root of 1214148878 is about 1066.8187685226.

The spelling of 1214148878 in words is "one billion, two hundred fourteen million, one hundred forty-eight thousand, eight hundred seventy-eight".