1290387514 has 32 divisors (see below), whose sum is σ = 2112251904. Its totient is φ = 587668800.

The previous prime is 1290387479. The next prime is 1290387517. The reversal of 1290387514 is 4157830921.

It is not an unprimeable number, because it can be changed into a prime (1290387517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005117 + ... + 1006399.

It is an arithmetic number, because the mean of its divisors is an integer number (66007872).

Almost surely, 2^1290387514 is an apocalyptic number.

1290387514 is a deficient number, since it is larger than the sum of its proper divisors (821864390).

1290387514 is a wasteful number, since it uses less digits than its factorization.

1290387514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1290387514 is about 35921.9642280319. The cubic root of 1290387514 is about 1088.6962258457.

The spelling of 1290387514 in words is "one billion, two hundred ninety million, three hundred eighty-seven thousand, five hundred fourteen".