1203654253 has 2 divisors, whose sum is σ = 1203654254. Its totient is φ = 1203654252.

The previous prime is 1203654241. The next prime is 1203654301. The reversal of 1203654253 is 3524563021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189008324 + 14645929 = 34482^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203654253 - 2²¹ = 1201557101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203654233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601827126 + 601827127.

It is an arithmetic number, because the mean of its divisors is an integer number (601827127).

Almost surely, 2^1203654253 is an apocalyptic number.

It is an amenable number.

1203654253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203654253 is an equidigital number, since it uses as much as digits as its factorization.

1203654253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1203654253 is about 34693.7206566260. The cubic root of 1203654253 is about 1063.7361492312.

The spelling of 1203654253 in words is "one billion, two hundred three million, six hundred fifty-four thousand, two hundred fifty-three".