1000157066 has 4 divisors (see below), whose sum is σ = 1500235602. Its totient is φ = 500078532.

The previous prime is 1000157057. The next prime is 1000157071. The reversal of 1000157066 is 6607510001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 589081441 + 411075625 = 24271^2 + 20275^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250039265 + ... + 250039268.

Almost surely, 2^1000157066 is an apocalyptic number.

1000157066 is a deficient number, since it is larger than the sum of its proper divisors (500078536).

1000157066 is an equidigital number, since it uses as much as digits as its factorization.

1000157066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500078535.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1000157066 is about 31625.2599356906. The cubic root of 1000157066 is about 1000.0523525925.

Adding to 1000157066 its reverse (6607510001), we get a palindrome (7607667067).

The spelling of 1000157066 in words is "one billion, one hundred fifty-seven thousand, sixty-six".