147881554 has 8 divisors (see below), whose sum is σ = 226007820. Its totient is φ = 72545616.

The previous prime is 147881543. The next prime is 147881561. The reversal of 147881554 is 455188741.

It can be written as a sum of positive squares in 2 ways, for example, as 142922025 + 4959529 = 11955^2 + 2227^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 147881554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697449 + ... + 697660.

Almost surely, 2^147881554 is an apocalyptic number.

147881554 is a deficient number, since it is larger than the sum of its proper divisors (78126266).

147881554 is a wasteful number, since it uses less digits than its factorization.

147881554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395164.

The product of its digits is 179200, while the sum is 43.

The square root of 147881554 is about 12160.6559855955. The cubic root of 147881554 is about 528.8160995409.

The spelling of 147881554 in words is "one hundred forty-seven million, eight hundred eighty-one thousand, five hundred fifty-four".