1005137227 has 4 divisors (see below), whose sum is σ = 1032303136. Its totient is φ = 977971320.

The previous prime is 1005137207. The next prime is 1005137233. The reversal of 1005137227 is 7227315001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1005137227 - 2¹¹ = 1005135179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005137195 and 1005137204.

It is not an unprimeable number, because it can be changed into a prime (1005137207) 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, 13582899 + ... + 13582972.

It is an arithmetic number, because the mean of its divisors is an integer number (258075784).

Almost surely, 2^1005137227 is an apocalyptic number.

1005137227 is a deficient number, since it is larger than the sum of its proper divisors (27165909).

1005137227 is an equidigital number, since it uses as much as digits as its factorization.

1005137227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27165908.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1005137227 is about 31703.8992396834. The cubic root of 1005137227 is about 1001.7094849958.

It can be divided in two parts, 10051 and 37227, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 1005137227 in words is "one billion, five million, one hundred thirty-seven thousand, two hundred twenty-seven".