147684721454 has 4 divisors (see below), whose sum is σ = 221527082184. Its totient is φ = 73842360726.

The previous prime is 147684721451. The next prime is 147684721493. The reversal of 147684721454 is 454127486741.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 147684721396 and 147684721405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147684721451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36921180362 + ... + 36921180365.

It is an arithmetic number, because the mean of its divisors is an integer number (55381770546).

Almost surely, 2^147684721454 is an apocalyptic number.

147684721454 is a deficient number, since it is larger than the sum of its proper divisors (73842360730).

147684721454 is an equidigital number, since it uses as much as digits as its factorization.

147684721454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73842360729.

The product of its digits is 6021120, while the sum is 53.

The spelling of 147684721454 in words is "one hundred forty-seven billion, six hundred eighty-four million, seven hundred twenty-one thousand, four hundred fifty-four".