1001052155 has 16 divisors (see below), whose sum is σ = 1241146368. Its totient is φ = 774300000.

The previous prime is 1001052133. The next prime is 1001052163. The reversal of 1001052155 is 5512501001.

It is a happy number.

It is not a de Polignac number, because 1001052155 - 2²⁰ = 1000003579 is a prime.

It is a Duffinian number.

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, 222680 + ... + 227130.

It is an arithmetic number, because the mean of its divisors is an integer number (77571648).

Almost surely, 2^1001052155 is an apocalyptic number.

1001052155 is a deficient number, since it is larger than the sum of its proper divisors (240094213).

1001052155 is a wasteful number, since it uses less digits than its factorization.

1001052155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1001052155 is about 31639.4082593212. The cubic root of 1001052155 is about 1000.3505954018.

Adding to 1001052155 its reverse (5512501001), we get a palindrome (6513553156).

The spelling of 1001052155 in words is "one billion, one million, fifty-two thousand, one hundred fifty-five".