146978024247 has 6 divisors (see below), whose sum is σ = 212301590592. Its totient is φ = 97985349492.

The previous prime is 146978024209. The next prime is 146978024251. The reversal of 146978024247 is 742420879641.

146978024247 is a `hidden beast` number, since 146 + 9 + 78 + 0 + 2 + 424 + 7 = 666.

It is not a de Polignac number, because 146978024247 - 2⁷ = 146978024119 is a prime.

It is a super-2 number, since 2×146978024247² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146978024193 and 146978024202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146978724247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8165445783 + ... + 8165445800.

It is an arithmetic number, because the mean of its divisors is an integer number (35383598432).

Almost surely, 2^146978024247 is an apocalyptic number.

146978024247 is a deficient number, since it is larger than the sum of its proper divisors (65323566345).

146978024247 is a wasteful number, since it uses less digits than its factorization.

146978024247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330891589 (or 16330891586 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 146978024247 in words is "one hundred forty-six billion, nine hundred seventy-eight million, twenty-four thousand, two hundred forty-seven".