47120531 has 4 divisors (see below), whose sum is σ = 47140464. Its totient is φ = 47100600.

The previous prime is 47120503. The next prime is 47120533. The reversal of 47120531 is 13502174.

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 47120531 - 2⁶ = 47120467 is a prime.

It is a super-2 number, since 2×47120531² = 4440688883443922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47120497 and 47120506.

It is not an unprimeable number, because it can be changed into a prime (47120533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5855 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (11785116).

Almost surely, 2^47120531 is an apocalyptic number.

47120531 is a deficient number, since it is larger than the sum of its proper divisors (19933).

47120531 is a wasteful number, since it uses less digits than its factorization.

47120531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 47120531 is about 6864.4395983940. The cubic root of 47120531 is about 361.1908378828.

The spelling of 47120531 in words is "forty-seven million, one hundred twenty thousand, five hundred thirty-one".