901354639 has 2 divisors, whose sum is σ = 901354640. Its totient is φ = 901354638.

The previous prime is 901354549. The next prime is 901354651. The reversal of 901354639 is 936453109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901354639 - 2⁷ = 901354511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901334639) 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 as a sum of consecutive naturals, namely, 450677319 + 450677320.

It is an arithmetic number, because the mean of its divisors is an integer number (450677320).

Almost surely, 2^901354639 is an apocalyptic number.

901354639 is a deficient number, since it is larger than the sum of its proper divisors (1).

901354639 is an equidigital number, since it uses as much as digits as its factorization.

901354639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 901354639 is about 30022.5688274671. The cubic root of 901354639 is about 965.9735453207.

The spelling of 901354639 in words is "nine hundred one million, three hundred fifty-four thousand, six hundred thirty-nine".