1254605253 has 16 divisors (see below), whose sum is σ = 1932227136. Its totient is φ = 715639040.

The previous prime is 1254605249. The next prime is 1254605257. The reversal of 1254605253 is 3525064521.

It is an interprime number because it is at equal distance from previous prime (1254605249) and next prime (1254605257).

It is a cyclic number.

It is not a de Polignac number, because 1254605253 - 2² = 1254605249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254605257) 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, 1117626 + ... + 1118747.

It is an arithmetic number, because the mean of its divisors is an integer number (120764196).

Almost surely, 2^1254605253 is an apocalyptic number.

It is an amenable number.

1254605253 is a deficient number, since it is larger than the sum of its proper divisors (677621883).

1254605253 is a wasteful number, since it uses less digits than its factorization.

1254605253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236404.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1254605253 is about 35420.4072957949. The cubic root of 1254605253 is about 1078.5386193039.

Adding to 1254605253 its reverse (3525064521), we get a palindrome (4779669774).

The spelling of 1254605253 in words is "one billion, two hundred fifty-four million, six hundred five thousand, two hundred fifty-three".