1253302155 has 36 divisors (see below), whose sum is σ = 2527070832. Its totient is φ = 572937120.

The previous prime is 1253302129. The next prime is 1253302159. The reversal of 1253302155 is 5512033521.

It is a happy number.

It is not a de Polignac number, because 1253302155 - 2¹⁰ = 1253301131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253302159) 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 in 35 ways as a sum of consecutive naturals, for example, 281991 + ... + 286400.

It is an arithmetic number, because the mean of its divisors is an integer number (70196412).

Almost surely, 2^1253302155 is an apocalyptic number.

1253302155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253302155 is an abundant number, since it is smaller than the sum of its proper divisors (1273768677).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253302155 is a wasteful number, since it uses less digits than its factorization.

1253302155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568416 (or 568406 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1253302155 is about 35402.0077820454. The cubic root of 1253302155 is about 1078.1650812572.

Adding to 1253302155 its reverse (5512033521), we get a palindrome (6765335676).

The spelling of 1253302155 in words is "one billion, two hundred fifty-three million, three hundred two thousand, one hundred fifty-five".