1251345550150 has 24 divisors (see below), whose sum is σ = 2329120301760. Its totient is φ = 500190353760.

The previous prime is 1251345550139. The next prime is 1251345550151. The reversal of 1251345550150 is 510555431521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251345550151) 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 11 ways as a sum of consecutive naturals, for example, 8623989 + ... + 8767888.

It is an arithmetic number, because the mean of its divisors is an integer number (97046679240).

Almost surely, 2^{1251345550150} is an apocalyptic number.

1251345550150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251345550150 is a deficient number, since it is larger than the sum of its proper divisors (1077774751610).

1251345550150 is a wasteful number, since it uses less digits than its factorization.

1251345550150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17393328 (or 17393323 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 1251345550150 in words is "one trillion, two hundred fifty-one billion, three hundred forty-five million, five hundred fifty thousand, one hundred fifty".