1311828154 has 32 divisors (see below), whose sum is σ = 2564303616. Its totient is φ = 488436480.

The previous prime is 1311828151. The next prime is 1311828173. The reversal of 1311828154 is 4518281131.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1311828151) 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, 208902 + ... + 215089.

It is an arithmetic number, because the mean of its divisors is an integer number (80134488).

Almost surely, 2^1311828154 is an apocalyptic number.

1311828154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1311828154 is a deficient number, since it is larger than the sum of its proper divisors (1252475462).

1311828154 is a wasteful number, since it uses less digits than its factorization.

1311828154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424030.

The product of its digits is 7680, while the sum is 34.

The square root of 1311828154 is about 36219.1683228646. The cubic root of 1311828154 is about 1094.6929364255.

The spelling of 1311828154 in words is "one billion, three hundred eleven million, eight hundred twenty-eight thousand, one hundred fifty-four".