31754641 has 2 divisors, whose sum is σ = 31754642. Its totient is φ = 31754640.

The previous prime is 31754573. The next prime is 31754659. The reversal of 31754641 is 14645713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 1449616 = 5505^2 + 1204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31754641 is a prime.

It is not a weakly prime, because it can be changed into another prime (31754741) 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, 15877320 + 15877321.

It is an arithmetic number, because the mean of its divisors is an integer number (15877321).

Almost surely, 2^31754641 is an apocalyptic number.

It is an amenable number.

31754641 is a deficient number, since it is larger than the sum of its proper divisors (1).

31754641 is an equidigital number, since it uses as much as digits as its factorization.

31754641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 31754641 is about 5635.1256419001. The cubic root of 31754641 is about 316.6667044629. Note that the first 3 decimals are identical.

The spelling of 31754641 in words is "thirty-one million, seven hundred fifty-four thousand, six hundred forty-one".