901251331 has 2 divisors, whose sum is σ = 901251332. Its totient is φ = 901251330.

The previous prime is 901251289. The next prime is 901251361. The reversal of 901251331 is 133152109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901251331 - 2¹⁹ = 900727043 is a prime.

It is a super-2 number, since 2×901251331² = 1624507923258543122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 901251296 and 901251305.

It is not a weakly prime, because it can be changed into another prime (901251361) 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 as a sum of consecutive naturals, namely, 450625665 + 450625666.

It is an arithmetic number, because the mean of its divisors is an integer number (450625666).

Almost surely, 2^901251331 is an apocalyptic number.

901251331 is a deficient number, since it is larger than the sum of its proper divisors (1).

901251331 is an equidigital number, since it uses as much as digits as its factorization.

901251331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 901251331 is about 30020.8482724922. The cubic root of 901251331 is about 965.9366391636.

The spelling of 901251331 in words is "nine hundred one million, two hundred fifty-one thousand, three hundred thirty-one".