1312200154 has 16 divisors (see below), whose sum is σ = 2072688480. Its totient is φ = 621330480.

The previous prime is 1312200151. The next prime is 1312200161. The reversal of 1312200154 is 4510022131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1312200151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131257 + ... + 140899.

It is an arithmetic number, because the mean of its divisors is an integer number (129543030).

Almost surely, 2^1312200154 is an apocalyptic number.

1312200154 is a deficient number, since it is larger than the sum of its proper divisors (760488326).

1312200154 is a wasteful number, since it uses less digits than its factorization.

1312200154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1312200154 is about 36224.3033611414. The cubic root of 1312200154 is about 1094.7964020317.

Adding to 1312200154 its reverse (4510022131), we get a palindrome (5822222285).

The spelling of 1312200154 in words is "one billion, three hundred twelve million, two hundred thousand, one hundred fifty-four".