47155965 has 8 divisors (see below), whose sum is σ = 75449568. Its totient is φ = 25149840.

The previous prime is 47155963. The next prime is 47155973. The reversal of 47155965 is 56955174.

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

It is not a de Polignac number, because 47155965 - 2¹ = 47155963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47155961) 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 7 ways as a sum of consecutive naturals, for example, 1571851 + ... + 1571880.

It is an arithmetic number, because the mean of its divisors is an integer number (9431196).

Almost surely, 2^47155965 is an apocalyptic number.

It is an amenable number.

47155965 is a deficient number, since it is larger than the sum of its proper divisors (28293603).

47155965 is a wasteful number, since it uses less digits than its factorization.

47155965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143739.

The product of its digits is 189000, while the sum is 42.

The square root of 47155965 is about 6867.0200960824. The cubic root of 47155965 is about 361.2813520680.

The spelling of 47155965 in words is "forty-seven million, one hundred fifty-five thousand, nine hundred sixty-five".