47154143 has 4 divisors (see below), whose sum is σ = 49635960. Its totient is φ = 44672328.

The previous prime is 47154139. The next prime is 47154199. The reversal of 47154143 is 34145174.

It is a happy number.

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 47154143 - 2² = 47154139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47154643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240880 + ... + 1240917.

It is an arithmetic number, because the mean of its divisors is an integer number (12408990).

Almost surely, 2^47154143 is an apocalyptic number.

47154143 is a deficient number, since it is larger than the sum of its proper divisors (2481817).

47154143 is a wasteful number, since it uses less digits than its factorization.

47154143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481816.

The product of its digits is 6720, while the sum is 29.

The square root of 47154143 is about 6866.8874317263. The cubic root of 47154143 is about 361.2766989762.

It can be divided in two parts, 47 and 154143, that multiplied together give a triangular number (7244721 = T₃₈₀₆).

The spelling of 47154143 in words is "forty-seven million, one hundred fifty-four thousand, one hundred forty-three".