1260397514 has 8 divisors (see below), whose sum is σ = 1897049700. Its totient is φ = 628047616.

The previous prime is 1260397513. The next prime is 1260397517. The reversal of 1260397514 is 4157930621.

It can be written as a sum of positive squares in 2 ways, for example, as 832611025 + 427786489 = 28855^2 + 20683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1260397513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074839 + ... + 1076010.

Almost surely, 2^1260397514 is an apocalyptic number.

1260397514 is a deficient number, since it is larger than the sum of its proper divisors (636652186).

1260397514 is a wasteful number, since it uses less digits than its factorization.

1260397514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151144.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1260397514 is about 35502.0776011771. The cubic root of 1260397514 is about 1080.1958703959.

The spelling of 1260397514 in words is "one billion, two hundred sixty million, three hundred ninety-seven thousand, five hundred fourteen".