1000157188 has 24 divisors (see below), whose sum is σ = 1844428320. Its totient is φ = 473235840.

The previous prime is 1000157183. The next prime is 1000157189. The reversal of 1000157188 is 8817510001.

It is not an unprimeable number, because it can be changed into a prime (1000157183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67020 + ... + 80572.

It is an arithmetic number, because the mean of its divisors is an integer number (76851180).

Almost surely, 2^1000157188 is an apocalyptic number.

It is an amenable number.

1000157188 is a deficient number, since it is larger than the sum of its proper divisors (844271132).

1000157188 is a wasteful number, since it uses less digits than its factorization.

1000157188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14547 (or 14545 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 31.

The square root of 1000157188 is about 31625.2618645285. The cubic root of 1000157188 is about 1000.0523932549.

Adding to 1000157188 its reverse (8817510001), we get a palindrome (9817667189).

The spelling of 1000157188 in words is "one billion, one hundred fifty-seven thousand, one hundred eighty-eight".