1427669129 has 8 divisors (see below), whose sum is σ = 1517978880. Its totient is φ = 1338062656.

The previous prime is 1427669107. The next prime is 1427669137. The reversal of 1427669129 is 9219667241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1427669129 - 2²⁰ = 1426620553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427669149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171629 + ... + 179754.

It is an arithmetic number, because the mean of its divisors is an integer number (189747360).

Almost surely, 2^1427669129 is an apocalyptic number.

It is an amenable number.

1427669129 is a deficient number, since it is larger than the sum of its proper divisors (90309751).

1427669129 is a wasteful number, since it uses less digits than its factorization.

1427669129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351639.

The product of its digits is 326592, while the sum is 47.

The square root of 1427669129 is about 37784.5091141859. The cubic root of 1427669129 is about 1126.0107141425.

The spelling of 1427669129 in words is "one billion, four hundred twenty-seven million, six hundred sixty-nine thousand, one hundred twenty-nine".