1292429487 has 8 divisors (see below), whose sum is σ = 1723720960. Its totient is φ = 861378840.

The previous prime is 1292429483. The next prime is 1292429491. The reversal of 1292429487 is 7849242921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1292429483) and next prime (1292429491).

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

It is not a de Polignac number, because 1292429487 - 2² = 1292429483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292429483) 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, 47287 + ... + 69432.

It is an arithmetic number, because the mean of its divisors is an integer number (215465120).

Almost surely, 2^1292429487 is an apocalyptic number.

1292429487 is a deficient number, since it is larger than the sum of its proper divisors (431291473).

1292429487 is a wasteful number, since it uses less digits than its factorization.

1292429487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120413.

The product of its digits is 580608, while the sum is 48.

The square root of 1292429487 is about 35950.3753387917. The cubic root of 1292429487 is about 1089.2701921058.

The spelling of 1292429487 in words is "one billion, two hundred ninety-two million, four hundred twenty-nine thousand, four hundred eighty-seven".