47031031 has 2 divisors, whose sum is σ = 47031032. Its totient is φ = 47031030.

The previous prime is 47031029. The next prime is 47031079. The reversal of 47031031 is 13013074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47031031 - 2¹ = 47031029 is a prime.

It is a super-2 number, since 2×47031031² = 4423835753845922, which contains 22 as substring.

Together with 47031029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47031731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23515515 + 23515516.

It is an arithmetic number, because the mean of its divisors is an integer number (23515516).

Almost surely, 2^47031031 is an apocalyptic number.

47031031 is a deficient number, since it is larger than the sum of its proper divisors (1).

47031031 is an equidigital number, since it uses as much as digits as its factorization.

47031031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 47031031 is about 6857.9173952447. The cubic root of 47031031 is about 360.9620128689.

The spelling of 47031031 in words is "forty-seven million, thirty-one thousand, thirty-one".