1241452551 has 4 divisors (see below), whose sum is σ = 1655270072. Its totient is φ = 827635032.

The previous prime is 1241452529. The next prime is 1241452579. The reversal of 1241452551 is 1552541421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1552541421 = 3 ⋅517513807.

It is not a de Polignac number, because 1241452551 - 2⁷ = 1241452423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241451551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206908756 + ... + 206908761.

It is an arithmetic number, because the mean of its divisors is an integer number (413817518).

Almost surely, 2^1241452551 is an apocalyptic number.

1241452551 is a deficient number, since it is larger than the sum of its proper divisors (413817521).

1241452551 is an equidigital number, since it uses as much as digits as its factorization.

1241452551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413817520.

The product of its digits is 8000, while the sum is 30.

The square root of 1241452551 is about 35234.2525250643. The cubic root of 1241452551 is about 1074.7564044411.

Adding to 1241452551 its reverse (1552541421), we get a palindrome (2793993972).

The spelling of 1241452551 in words is "one billion, two hundred forty-one million, four hundred fifty-two thousand, five hundred fifty-one".