1002545155 has 16 divisors (see below), whose sum is σ = 1251227520. Its totient is φ = 770470272.

The previous prime is 1002545147. The next prime is 1002545213. The reversal of 1002545155 is 5515452001.

It is a cyclic number.

It is not a de Polignac number, because 1002545155 - 2³ = 1002545147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19684 + ... + 48913.

It is an arithmetic number, because the mean of its divisors is an integer number (78201720).

Almost surely, 2^1002545155 is an apocalyptic number.

1002545155 is a deficient number, since it is larger than the sum of its proper divisors (248682365).

1002545155 is an equidigital number, since it uses as much as digits as its factorization.

1002545155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68718.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 1002545155 is about 31662.9934624002. The cubic root of 1002545155 is about 1000.8476662589.

Adding to 1002545155 its reverse (5515452001), we get a palindrome (6517997156).

The spelling of 1002545155 in words is "one billion, two million, five hundred forty-five thousand, one hundred fifty-five".