1234253551 has 4 divisors (see below), whose sum is σ = 1239056352. Its totient is φ = 1229450752.

The previous prime is 1234253549. The next prime is 1234253593. The reversal of 1234253551 is 1553524321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1553524321 = 229 ⋅6783949.

It is a cyclic number.

It is not a de Polignac number, because 1234253551 - 2¹ = 1234253549 is a prime.

It is a super-2 number, since 2×1234253551² = 3046763656312219202, 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 (1234253051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401015 + ... + 2401528.

It is an arithmetic number, because the mean of its divisors is an integer number (309764088).

Almost surely, 2^1234253551 is an apocalyptic number.

1234253551 is a deficient number, since it is larger than the sum of its proper divisors (4802801).

1234253551 is an equidigital number, since it uses as much as digits as its factorization.

1234253551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802800.

The product of its digits is 18000, while the sum is 31.

The square root of 1234253551 is about 35131.9448792691. The cubic root of 1234253551 is about 1072.6749246218.

Adding to 1234253551 its reverse (1553524321), we get a palindrome (2787777872).

The spelling of 1234253551 in words is "one billion, two hundred thirty-four million, two hundred fifty-three thousand, five hundred fifty-one".