1250632912489 has 3 divisors (see below), whose sum is σ = 1250634030807. Its totient is φ = 1250631794172.

The previous prime is 1250632912469. The next prime is 1250632912493. The reversal of 1250632912489 is 9842192360521.

It is a happy number.

The square root of 1250632912489 is 1118317.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 132732705625 + 1117900206864 = 364325^2 + 1057308^2 .

It is not a de Polignac number, because 1250632912489 - 2⁵ = 1250632912457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250632912409) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 559159 + ... + 1677475.

It is an arithmetic number, because the mean of its divisors is an integer number (416878010269).

Almost surely, 2^{1250632912489} is an apocalyptic number.

1250632912489 is the 1118317-th square number.

1250632912489 is the 559159-th centered octagonal number.

It is an amenable number.

1250632912489 is a deficient number, since it is larger than the sum of its proper divisors (1118318).

1250632912489 is an frugal number, since it uses more digits than its factorization.

1250632912489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236634 (or 1118317 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 1250632912489 in words is "one trillion, two hundred fifty billion, six hundred thirty-two million, nine hundred twelve thousand, four hundred eighty-nine".