1373708453 has 16 divisors (see below), whose sum is σ = 1541620080. Its totient is φ = 1215330816.

The previous prime is 1373708449. The next prime is 1373708461. The reversal of 1373708453 is 3548073731.

It can be written as a sum of positive squares in 8 ways, for example, as 11950849 + 1361757604 = 3457^2 + 36902^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373708453 - 2² = 1373708449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373708453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373708423) 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, 38351 + ... + 64947.

It is an arithmetic number, because the mean of its divisors is an integer number (96351255).

Almost surely, 2^1373708453 is an apocalyptic number.

1373708453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1373708453 is a deficient number, since it is larger than the sum of its proper divisors (167911627).

1373708453 is a wasteful number, since it uses less digits than its factorization.

1373708453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26776.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 1373708453 is about 37063.5731278030. The cubic root of 1373708453 is about 1111.6417695718.

The spelling of 1373708453 in words is "one billion, three hundred seventy-three million, seven hundred eight thousand, four hundred fifty-three".