1349971 has 4 divisors (see below), whose sum is σ = 1542832. Its totient is φ = 1157112.

The previous prime is 1349947. The next prime is 1349977. The reversal of 1349971 is 1799431.

1349971 = 304² + 305² + ... + 317².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1799431 = 239 ⋅7529.

It is a cyclic number.

It is not a de Polignac number, because 1349971 - 2¹³ = 1341779 is a prime.

It is a Duffinian number.

1349971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1349977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96420 + ... + 96433.

It is an arithmetic number, because the mean of its divisors is an integer number (385708).

2^1349971 is an apocalyptic number.

1349971 is a deficient number, since it is larger than the sum of its proper divisors (192861).

1349971 is an equidigital number, since it uses as much as digits as its factorization.

1349971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192860.

The product of its digits is 6804, while the sum is 34.

The square root of 1349971 is about 1161.8825241822. The cubic root of 1349971 is about 110.5201535690.

The spelling of 1349971 in words is "one million, three hundred forty-nine thousand, nine hundred seventy-one".