103020453 has 6 divisors (see below), whose sum is σ = 148807334. Its totient is φ = 68680296.

The previous prime is 103020443. The next prime is 103020457. The reversal of 103020453 is 354020301.

It can be written as a sum of positive squares in only one way, i.e., 100761444 + 2259009 = 10038^2 + 1503^2 .

It is not a de Polignac number, because 103020453 - 2²¹ = 100923301 is a prime.

It is a super-2 number, since 2×103020453² = 21226427472650418, 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 (103020457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5723350 + ... + 5723367.

Almost surely, 2^103020453 is an apocalyptic number.

It is an amenable number.

103020453 is a deficient number, since it is larger than the sum of its proper divisors (45786881).

103020453 is a wasteful number, since it uses less digits than its factorization.

103020453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446723 (or 11446720 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 103020453 is about 10149.8991620607. The cubic root of 103020453 is about 468.7858400330.

Adding to 103020453 its reverse (354020301), we get a palindrome (457040754).

The spelling of 103020453 in words is "one hundred three million, twenty thousand, four hundred fifty-three".