901001047 has 2 divisors, whose sum is σ = 901001048. Its totient is φ = 901001046.

The previous prime is 901001041. The next prime is 901001051. The reversal of 901001047 is 740100109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901001047 - 2³ = 901001039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901001041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450500523 + 450500524.

It is an arithmetic number, because the mean of its divisors is an integer number (450500524).

Almost surely, 2^901001047 is an apocalyptic number.

901001047 is a deficient number, since it is larger than the sum of its proper divisors (1).

901001047 is an equidigital number, since it uses as much as digits as its factorization.

901001047 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 22.

The square root of 901001047 is about 30016.6794799158. The cubic root of 901001047 is about 965.8472150262.

The spelling of 901001047 in words is "nine hundred one million, one thousand, forty-seven".