1155132124250 has 128 divisors (see below), whose sum is σ = 2387248718400. Its totient is φ = 415810560000.

The previous prime is 1155132124249. The next prime is 1155132124253. The reversal of 1155132124250 is 524212315511.

It can be written as a sum of positive squares in 32 ways, for example, as 745274803849 + 409857320401 = 863293^2 + 640201^2 .

It is not an unprimeable number, because it can be changed into a prime (1155132124253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 285286226 + ... + 285290274.

Almost surely, 2^{1155132124250} is an apocalyptic number.

1155132124250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155132124250 is an abundant number, since it is smaller than the sum of its proper divisors (1232116594150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155132124250 is a wasteful number, since it uses less digits than its factorization.

1155132124250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261 (or 6251 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 1155132124250 its reverse (524212315511), we get a palindrome (1679344439761).

The spelling of 1155132124250 in words is "one trillion, one hundred fifty-five billion, one hundred thirty-two million, one hundred twenty-four thousand, two hundred fifty".