1051399 has 8 divisors (see below), whose sum is σ = 1162080. Its totient is φ = 946176.

The previous prime is 1051397. The next prime is 1051409. The reversal of 1051399 is 9931501.

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 1051399 - 2¹ = 1051397 is a prime.

It is a super-2 number, since 2×1051399² = 2210879714402, which contains 22 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 (1051397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954 + ... + 1735.

It is an arithmetic number, because the mean of its divisors is an integer number (145260).

2^1051399 is an apocalyptic number.

1051399 is a deficient number, since it is larger than the sum of its proper divisors (110681).

1051399 is a wasteful number, since it uses less digits than its factorization.

1051399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 1051399 is about 1025.3774914635. The cubic root of 1051399 is about 101.6847565529.

The spelling of 1051399 in words is "one million, fifty-one thousand, three hundred ninety-nine".