1006155002 has 4 divisors (see below), whose sum is σ = 1509232506. Its totient is φ = 503077500.

The previous prime is 1006155001. The next prime is 1006155011. The reversal of 1006155002 is 2005516001.

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., 970883281 + 35271721 = 31159^2 + 5939^2 .

It is not an unprimeable number, because it can be changed into a prime (1006155001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251538749 + ... + 251538752.

Almost surely, 2^1006155002 is an apocalyptic number.

1006155002 is a deficient number, since it is larger than the sum of its proper divisors (503077504).

1006155002 is an equidigital number, since it uses as much as digits as its factorization.

1006155002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503077503.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1006155002 is about 31719.9464375336. The cubic root of 1006155002 is about 1002.0474723293.

The spelling of 1006155002 in words is "one billion, six million, one hundred fifty-five thousand, two".