1230157500 has 480 divisors, whose sum is σ = 4467369984. Its totient is φ = 259200000.

The previous prime is 1230157499. The next prime is 1230157517. The reversal of 1230157500 is 57510321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 33247482 + ... + 33247518.

Almost surely, 2^1230157500 is an apocalyptic number.

1230157500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230157500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2233684992).

1230157500 is an abundant number, since it is smaller than the sum of its proper divisors (3237212484).

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

1230157500 is a wasteful number, since it uses less digits than its factorization.

1230157500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 1230157500 is about 35073.6011837963. The cubic root of 1230157500 is about 1071.4869999882.

Adding to 1230157500 its reverse (57510321), we get a palindrome (1287667821).

The spelling of 1230157500 in words is "one billion, two hundred thirty million, one hundred fifty-seven thousand, five hundred".