31419413 has 2 divisors, whose sum is σ = 31419414. Its totient is φ = 31419412.

The previous prime is 31419371. The next prime is 31419431. The reversal of 31419413 is 31491413.

Together with next prime (31419431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27952369 + 3467044 = 5287^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 31419413 - 2¹⁶ = 31353877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31419463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15709706 + 15709707.

It is an arithmetic number, because the mean of its divisors is an integer number (15709707).

Almost surely, 2^31419413 is an apocalyptic number.

It is an amenable number.

31419413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31419413 is an equidigital number, since it uses as much as digits as its factorization.

31419413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 31419413 is about 5605.3022220037. The cubic root of 31419413 is about 315.5484290023.

The spelling of 31419413 in words is "thirty-one million, four hundred nineteen thousand, four hundred thirteen".