1427392147 has 4 divisors (see below), whose sum is σ = 1427569920. Its totient is φ = 1427214376.

The previous prime is 1427392079. The next prime is 1427392189. The reversal of 1427392147 is 7412937241.

It is a happy number.

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 1427392147 - 2¹⁵ = 1427359379 is a prime.

It is a super-3 number, since 3×1427392147³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427390147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76243 + ... + 93100.

It is an arithmetic number, because the mean of its divisors is an integer number (356892480).

Almost surely, 2^1427392147 is an apocalyptic number.

1427392147 is a deficient number, since it is larger than the sum of its proper divisors (177773).

1427392147 is an equidigital number, since it uses as much as digits as its factorization.

1427392147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177772.

The product of its digits is 84672, while the sum is 40.

The square root of 1427392147 is about 37780.8436512474. The cubic root of 1427392147 is about 1125.9378903429.

The spelling of 1427392147 in words is "one billion, four hundred twenty-seven million, three hundred ninety-two thousand, one hundred forty-seven".