1394371453 has 4 divisors (see below), whose sum is σ = 1399555260. Its totient is φ = 1389187648.

The previous prime is 1394371421. The next prime is 1394371499. The reversal of 1394371453 is 3541734931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 337016164 + 1057355289 = 18358^2 + 32517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394371453 - 2⁵ = 1394371421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394371553) 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, 2591500 + ... + 2592037.

It is an arithmetic number, because the mean of its divisors is an integer number (349888815).

Almost surely, 2^1394371453 is an apocalyptic number.

It is an amenable number.

1394371453 is a deficient number, since it is larger than the sum of its proper divisors (5183807).

1394371453 is an equidigital number, since it uses as much as digits as its factorization.

1394371453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183806.

The product of its digits is 136080, while the sum is 40.

The square root of 1394371453 is about 37341.2834942775. The cubic root of 1394371453 is about 1117.1877395952.

The spelling of 1394371453 in words is "one billion, three hundred ninety-four million, three hundred seventy-one thousand, four hundred fifty-three".