101287051 has 4 divisors (see below), whose sum is σ = 102216400. Its totient is φ = 100357704.

The previous prime is 101287027. The next prime is 101287061. The reversal of 101287051 is 150782101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150782101 = 199 ⋅757699.

It is a cyclic number.

It is not a de Polignac number, because 101287051 - 2⁷ = 101286923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101287001) 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, 464511 + ... + 464728.

It is an arithmetic number, because the mean of its divisors is an integer number (25554100).

Almost surely, 2^101287051 is an apocalyptic number.

101287051 is a deficient number, since it is larger than the sum of its proper divisors (929349).

101287051 is an equidigital number, since it uses as much as digits as its factorization.

101287051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929348.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 101287051 is about 10064.1468093426. The cubic root of 101287051 is about 466.1417213407.

The spelling of 101287051 in words is "one hundred one million, two hundred eighty-seven thousand, fifty-one".