1427266155 has 32 divisors (see below), whose sum is σ = 2665396224. Its totient is φ = 638580096.

The previous prime is 1427266153. The next prime is 1427266163. The reversal of 1427266155 is 5516627241.

It is not a de Polignac number, because 1427266155 - 2¹ = 1427266153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427266151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139672 + ... + 149541.

It is an arithmetic number, because the mean of its divisors is an integer number (83293632).

Almost surely, 2^1427266155 is an apocalyptic number.

1427266155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1427266155 is a deficient number, since it is larger than the sum of its proper divisors (1238130069).

1427266155 is a wasteful number, since it uses less digits than its factorization.

1427266155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289275.

The product of its digits is 100800, while the sum is 39.

The square root of 1427266155 is about 37779.1762085941. The cubic root of 1427266155 is about 1125.9047615490.

The spelling of 1427266155 in words is "one billion, four hundred twenty-seven million, two hundred sixty-six thousand, one hundred fifty-five".