1390053 has 16 divisors (see below), whose sum is σ = 2176640. Its totient is φ = 772416.

The previous prime is 1390043. The next prime is 1390069. The reversal of 1390053 is 3500931.

It is not a de Polignac number, because 1390053 - 2⁶ = 1389989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (136040).

2^1390053 is an apocalyptic number.

It is an amenable number.

1390053 is a deficient number, since it is larger than the sum of its proper divisors (786587).

1390053 is a wasteful number, since it uses less digits than its factorization.

1390053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 1390053 is about 1179.0050890475. The cubic root of 1390053 is about 111.6033214155.

Adding to 1390053 its reverse (3500931), we get a palindrome (4890984).

The spelling of 1390053 in words is "one million, three hundred ninety thousand, fifty-three".