1260630553 has 8 divisors (see below), whose sum is σ = 1551545408. Its totient is φ = 997421904.

The previous prime is 1260630533. The next prime is 1260630557. The reversal of 1260630553 is 3550360621.

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

It is a cyclic number.

It is not a de Polignac number, because 1260630553 - 2²⁵ = 1227076121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260630557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6926451 + ... + 6926632.

It is an arithmetic number, because the mean of its divisors is an integer number (193943176).

Almost surely, 2^1260630553 is an apocalyptic number.

1260630553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1260630553 is a deficient number, since it is larger than the sum of its proper divisors (290914855).

1260630553 is a wasteful number, since it uses less digits than its factorization.

1260630553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853103.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1260630553 is about 35505.3594968422. The cubic root of 1260630553 is about 1080.2624399371.

The spelling of 1260630553 in words is "one billion, two hundred sixty million, six hundred thirty thousand, five hundred fifty-three".