1290280471 has 8 divisors (see below), whose sum is σ = 1295130240. Its totient is φ = 1285440312.

The previous prime is 1290280469. The next prime is 1290280477. The reversal of 1290280471 is 1740820921.

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

It is a cyclic number.

It is not a de Polignac number, because 1290280471 - 2¹ = 1290280469 is a prime.

It is a super-3 number, since 3×1290280471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290280477) 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, 362820 + ... + 366358.

It is an arithmetic number, because the mean of its divisors is an integer number (161891280).

Almost surely, 2^1290280471 is an apocalyptic number.

1290280471 is a deficient number, since it is larger than the sum of its proper divisors (4849769).

1290280471 is an equidigital number, since it uses as much as digits as its factorization.

1290280471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1290280471 is about 35920.4742591186. The cubic root of 1290280471 is about 1088.6661210564. Note that the first 3 decimals are identical.

The spelling of 1290280471 in words is "one billion, two hundred ninety million, two hundred eighty thousand, four hundred seventy-one".