152621636 has 6 divisors (see below), whose sum is σ = 267087870. Its totient is φ = 76310816.

The previous prime is 152621603. The next prime is 152621647. The reversal of 152621636 is 636126251.

It can be written as a sum of positive squares in only one way, i.e., 151044100 + 1577536 = 12290^2 + 1256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19077701 + ... + 19077708.

It is an arithmetic number, because the mean of its divisors is an integer number (44514645).

Almost surely, 2^152621636 is an apocalyptic number.

It is an amenable number.

152621636 is a deficient number, since it is larger than the sum of its proper divisors (114466234).

152621636 is a wasteful number, since it uses less digits than its factorization.

152621636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38155413 (or 38155411 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 152621636 is about 12354.0129512641. The cubic root of 152621636 is about 534.4068728797.

Adding to 152621636 its reverse (636126251), we get a palindrome (788747887).

The spelling of 152621636 in words is "one hundred fifty-two million, six hundred twenty-one thousand, six hundred thirty-six".