2978134731 has 36 divisors (see below), whose sum is σ = 5081601096. Its totient is φ = 1666080000.

The previous prime is 2978134711. The next prime is 2978134751. The reversal of 2978134731 is 1374318792.

2978134731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2978134711) and next prime (2978134751).

It is not a de Polignac number, because 2978134731 - 2¹⁷ = 2978003659 is a prime.

It is a super-3 number, since 3×2978134731³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2978134711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72270 + ... + 105731.

It is an arithmetic number, because the mean of its divisors is an integer number (141155586).

Almost surely, 2^2978134731 is an apocalyptic number.

2978134731 is a deficient number, since it is larger than the sum of its proper divisors (2103466365).

2978134731 is a wasteful number, since it uses less digits than its factorization.

2978134731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178044 (or 178028 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2978134731 is about 54572.2890394017. The cubic root of 2978134731 is about 1438.7371147016.

The spelling of 2978134731 in words is "two billion, nine hundred seventy-eight million, one hundred thirty-four thousand, seven hundred thirty-one".