2978260147 has 4 divisors (see below), whose sum is σ = 2992375336. Its totient is φ = 2964144960.

The previous prime is 2978260123. The next prime is 2978260163. The reversal of 2978260147 is 7410628792.

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

It is a cyclic number.

It is not a de Polignac number, because 2978260147 - 2¹¹ = 2978258099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2978260097 and 2978260106.

It is not an unprimeable number, because it can be changed into a prime (2978260847) 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, 7057278 + ... + 7057699.

It is an arithmetic number, because the mean of its divisors is an integer number (748093834).

Almost surely, 2^2978260147 is an apocalyptic number.

2978260147 is a deficient number, since it is larger than the sum of its proper divisors (14115189).

2978260147 is a wasteful number, since it uses less digits than its factorization.

2978260147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14115188.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2978260147 is about 54573.4381086623. The cubic root of 2978260147 is about 1438.7573105778.

The spelling of 2978260147 in words is "two billion, nine hundred seventy-eight million, two hundred sixty thousand, one hundred forty-seven".