1291402 has 8 divisors (see below), whose sum is σ = 2213856. Its totient is φ = 553452.

The previous prime is 1291391. The next prime is 1291421. The reversal of 1291402 is 2041921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1291402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46108 + ... + 46135.

It is an arithmetic number, because the mean of its divisors is an integer number (276732).

2^1291402 is an apocalyptic number.

1291402 is a deficient number, since it is larger than the sum of its proper divisors (922454).

1291402 is an equidigital number, since it uses as much as digits as its factorization.

1291402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92252.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1291402 is about 1136.3986976409. The cubic root of 1291402 is about 108.8981457415.

The spelling of 1291402 in words is "one million, two hundred ninety-one thousand, four hundred two".