901748009 has 2 divisors, whose sum is σ = 901748010. Its totient is φ = 901748008.

The previous prime is 901747981. The next prime is 901748021. The reversal of 901748009 is 900847109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757075225 + 144672784 = 27515^2 + 12028^2 .

It is a cyclic number.

It is not a de Polignac number, because 901748009 - 2²⁰ = 900699433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (901748039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450874004 + 450874005.

It is an arithmetic number, because the mean of its divisors is an integer number (450874005).

Almost surely, 2^901748009 is an apocalyptic number.

It is an amenable number.

901748009 is a deficient number, since it is larger than the sum of its proper divisors (1).

901748009 is an equidigital number, since it uses as much as digits as its factorization.

901748009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 901748009 is about 30029.1193510566. The cubic root of 901748009 is about 966.1140485635.

The spelling of 901748009 in words is "nine hundred one million, seven hundred forty-eight thousand, nine".