1311648254 has 32 divisors (see below), whose sum is σ = 2323863552. Its totient is φ = 543348000.

The previous prime is 1311648241. The next prime is 1311648257. The reversal of 1311648254 is 4528461131.

It is a super-2 number, since 2×1311648254² = 3440842284442497032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311648257) 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, 559124 + ... + 561464.

It is an arithmetic number, because the mean of its divisors is an integer number (72620736).

Almost surely, 2^1311648254 is an apocalyptic number.

1311648254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1311648254 is a deficient number, since it is larger than the sum of its proper divisors (1012215298).

1311648254 is a wasteful number, since it uses less digits than its factorization.

1311648254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its digits is 23040, while the sum is 35.

The square root of 1311648254 is about 36216.6847461222. The cubic root of 1311648254 is about 1094.6428932188.

The spelling of 1311648254 in words is "one billion, three hundred eleven million, six hundred forty-eight thousand, two hundred fifty-four".