1398051 has 12 divisors (see below), whose sum is σ = 2033928. Its totient is φ = 925344.

The previous prime is 1398049. The next prime is 1398053. The reversal of 1398051 is 1508931.

It is an interprime number because it is at equal distance from previous prime (1398049) and next prime (1398053).

It is not a de Polignac number, because 1398051 - 2¹ = 1398049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 991 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (169494).

2^1398051 is an apocalyptic number.

1398051 is a deficient number, since it is larger than the sum of its proper divisors (635877).

1398051 is a wasteful number, since it uses less digits than its factorization.

1398051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1398051 is about 1182.3920669558. The cubic root of 1398051 is about 111.8169576056.

The spelling of 1398051 in words is "one million, three hundred ninety-eight thousand, fifty-one".