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12749453 is a prime number
BaseRepresentation
bin110000101000…
…101010001101
3212222201221222
4300220222031
511230440303
61133133125
7213240263
oct60505215
925881858
1012749453
117218942
12432a1a5
132845172
14199c433
1511bc938
hexc28a8d

12749453 has 2 divisors, whose sum is σ = 12749454. Its totient is φ = 12749452.

The previous prime is 12749449. The next prime is 12749489. The reversal of 12749453 is 35494721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10738729 + 2010724 = 3277^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 12749453 - 22 = 12749449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12749413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6374726 + 6374727.

It is an arithmetic number, because the mean of its divisors is an integer number (6374727).

Almost surely, 212749453 is an apocalyptic number.

It is an amenable number.

12749453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12749453 is an equidigital number, since it uses as much as digits as its factorization.

12749453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 12749453 is about 3570.6376181293. The cubic root of 12749453 is about 233.6130955023.

The spelling of 12749453 in words is "twelve million, seven hundred forty-nine thousand, four hundred fifty-three".