157230000 has 150 divisors (see below), whose sum is σ = 550170764. Its totient is φ = 41904000.

The previous prime is 157229977. The next prime is 157230011. The reversal of 157230000 is 32751.

157230000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 89127 + ... + 90873.

Almost surely, 2^157230000 is an apocalyptic number.

157230000 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 157230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275085382).

157230000 is an abundant number, since it is smaller than the sum of its proper divisors (392940764).

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

157230000 is a wasteful number, since it uses less digits than its factorization.

157230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 157230000 is about 12539.1387264038. The cubic root of 157230000 is about 539.7323776772.

Adding to 157230000 its reverse (32751), we get a palindrome (157262751).

The spelling of 157230000 in words is "one hundred fifty-seven million, two hundred thirty thousand".