31194474001 has 2 divisors, whose sum is σ = 31194474002. Its totient is φ = 31194474000.

The previous prime is 31194473987. The next prime is 31194474043. The reversal of 31194474001 is 10047449113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30914078976 + 280395025 = 175824^2 + 16745^2 .

It is a cyclic number.

It is not a de Polignac number, because 31194474001 - 2⁹ = 31194473489 is a prime.

It is not a weakly prime, because it can be changed into another prime (31194474401) 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, 15597237000 + 15597237001.

It is an arithmetic number, because the mean of its divisors is an integer number (15597237001).

Almost surely, 2^31194474001 is an apocalyptic number.

It is an amenable number.

31194474001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31194474001 is an equidigital number, since it uses as much as digits as its factorization.

31194474001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 31194474001 in words is "thirty-one billion, one hundred ninety-four million, four hundred seventy-four thousand, one".