1290685134 has 32 divisors (see below), whose sum is σ = 2661115680. Its totient is φ = 417025152.

The previous prime is 1290685129. The next prime is 1290685159. The reversal of 1290685134 is 4315860921.

It is a super-3 number, since 3×1290685134³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1290685092 and 1290685101.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 48912 + ... + 70524.

It is an arithmetic number, because the mean of its divisors is an integer number (83159865).

Almost surely, 2^1290685134 is an apocalyptic number.

1290685134 is an abundant number, since it is smaller than the sum of its proper divisors (1370430546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290685134 is a wasteful number, since it uses less digits than its factorization.

1290685134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21924.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1290685134 is about 35926.1065800345. The cubic root of 1290685134 is about 1088.7799197902.

The spelling of 1290685134 in words is "one billion, two hundred ninety million, six hundred eighty-five thousand, one hundred thirty-four".