1302147978 has 8 divisors (see below), whose sum is σ = 2604295968. Its totient is φ = 434049324.

The previous prime is 1302147971. The next prime is 1302147989. The reversal of 1302147978 is 8797412031.

1302147978 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

1302147978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1302147971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108512326 + ... + 108512337.

It is an arithmetic number, because the mean of its divisors is an integer number (325536996).

Almost surely, 2^1302147978 is an apocalyptic number.

1302147978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1302147978 is a wasteful number, since it uses less digits than its factorization.

1302147978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217024668.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 1302147978 is about 36085.2875560110. The cubic root of 1302147978 is about 1091.9936517631.

The spelling of 1302147978 in words is "one billion, three hundred two million, one hundred forty-seven thousand, nine hundred seventy-eight".