1522157230 has 32 divisors (see below), whose sum is σ = 3012526080. Its totient is φ = 549148320.

The previous prime is 1522157209. The next prime is 1522157239. The reversal of 1522157230 is 327512251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522157239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40510 + ... + 68449.

It is an arithmetic number, because the mean of its divisors is an integer number (94141440).

Almost surely, 2^1522157230 is an apocalyptic number.

1522157230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1522157230 is a deficient number, since it is larger than the sum of its proper divisors (1490368850).

1522157230 is a wasteful number, since it uses less digits than its factorization.

1522157230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109104.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1522157230 is about 39014.8334611337. The cubic root of 1522157230 is about 1150.3230925835.

Adding to 1522157230 its reverse (327512251), we get a palindrome (1849669481).

The spelling of 1522157230 in words is "one billion, five hundred twenty-two million, one hundred fifty-seven thousand, two hundred thirty".