1002861051 has 4 divisors (see below), whose sum is σ = 1337148072. Its totient is φ = 668574032.

The previous prime is 1002861023. The next prime is 1002861091. The reversal of 1002861051 is 1501682001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1501682001 = 3 ⋅500560667.

It is a cyclic number.

It is not a de Polignac number, because 1002861051 - 2⁹ = 1002860539 is a prime.

It is a super-2 number, since 2×1002861051² = 2011460575225649202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002861091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167143506 + ... + 167143511.

It is an arithmetic number, because the mean of its divisors is an integer number (334287018).

Almost surely, 2^1002861051 is an apocalyptic number.

1002861051 is a deficient number, since it is larger than the sum of its proper divisors (334287021).

1002861051 is an equidigital number, since it uses as much as digits as its factorization.

1002861051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334287020.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1002861051 is about 31667.9814797218. The cubic root of 1002861051 is about 1000.9527755970.

The spelling of 1002861051 in words is "one billion, two million, eight hundred sixty-one thousand, fifty-one".