31419999 has 12 divisors (see below), whose sum is σ = 48875736. Its totient is φ = 19335312.

The previous prime is 31419979. The next prime is 31420009. The reversal of 31419999 is 99991413.

It is not a de Polignac number, because 31419999 - 2⁵ = 31419967 is a prime.

31419999 is a modest number, since divided by 9999 gives 3141 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31419979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134157 + ... + 134390.

It is an arithmetic number, because the mean of its divisors is an integer number (4072978).

Almost surely, 2^31419999 is an apocalyptic number.

31419999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

31419999 is a deficient number, since it is larger than the sum of its proper divisors (17455737).

31419999 is a wasteful number, since it uses less digits than its factorization.

31419999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268566 (or 268563 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 31419999 is about 5605.3544936962. The cubic root of 31419999 is about 315.5503907431.

The spelling of 31419999 in words is "thirty-one million, four hundred nineteen thousand, nine hundred ninety-nine".