47138045 has 8 divisors (see below), whose sum is σ = 56623320. Its totient is φ = 37672000.

The previous prime is 47138009. The next prime is 47138057. The reversal of 47138045 is 54083174.

It can be written as a sum of positive squares in 4 ways, for example, as 2968729 + 44169316 = 1723^2 + 6646^2 .

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

It is not a de Polignac number, because 47138045 - 2¹⁰ = 47137021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295 + ... + 9795.

It is an arithmetic number, because the mean of its divisors is an integer number (7077915).

Almost surely, 2^47138045 is an apocalyptic number.

It is an amenable number.

47138045 is a deficient number, since it is larger than the sum of its proper divisors (9485275).

47138045 is a wasteful number, since it uses less digits than its factorization.

47138045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 47138045 is about 6865.7151848879. The cubic root of 47138045 is about 361.2355820924.

The spelling of 47138045 in words is "forty-seven million, one hundred thirty-eight thousand, forty-five".