1245134550 has 48 divisors (see below), whose sum is σ = 3368659392. Its totient is φ = 301850400.

The previous prime is 1245134537. The next prime is 1245134593. The reversal of 1245134550 is 554315421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375664 + ... + 378963.

It is an arithmetic number, because the mean of its divisors is an integer number (70180404).

Almost surely, 2^1245134550 is an apocalyptic number.

1245134550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245134550 is an abundant number, since it is smaller than the sum of its proper divisors (2123524842).

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

1245134550 is a wasteful number, since it uses less digits than its factorization.

1245134550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754653 (or 754648 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1245134550 is about 35286.4641186957. The cubic root of 1245134550 is about 1075.8178884778.

Adding to 1245134550 its reverse (554315421), we get a palindrome (1799449971).

The spelling of 1245134550 in words is "one billion, two hundred forty-five million, one hundred thirty-four thousand, five hundred fifty".