157020652 has 24 divisors (see below), whose sum is σ = 282606912. Its totient is φ = 76291200.

The previous prime is 157020629. The next prime is 157020659. The reversal of 157020652 is 256020751.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 157020652.

It is not an unprimeable number, because it can be changed into a prime (157020659) 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 7 ways as a sum of consecutive naturals, for example, 42678 + ... + 46210.

It is an arithmetic number, because the mean of its divisors is an integer number (11775288).

Almost surely, 2^157020652 is an apocalyptic number.

It is an amenable number.

157020652 is a deficient number, since it is larger than the sum of its proper divisors (125586260).

157020652 is a wasteful number, since it uses less digits than its factorization.

157020652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849 (or 3847 counting only the distinct ones).

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

The square root of 157020652 is about 12530.7881635594. The cubic root of 157020652 is about 539.4927243464.

Subtracting 157020652 from its reverse (256020751), we obtain a palindrome (99000099).

It can be divided in two parts, 1570 and 20652, that added together give a palindrome (22222).

The spelling of 157020652 in words is "one hundred fifty-seven million, twenty thousand, six hundred fifty-two".