1141520451 has 4 divisors (see below), whose sum is σ = 1522027272. Its totient is φ = 761013632.

The previous prime is 1141520447. The next prime is 1141520461. The reversal of 1141520451 is 1540251411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1141520451 - 2² = 1141520447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1141520431) 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, 190253406 + ... + 190253411.

It is an arithmetic number, because the mean of its divisors is an integer number (380506818).

Almost surely, 2^1141520451 is an apocalyptic number.

1141520451 is a deficient number, since it is larger than the sum of its proper divisors (380506821).

1141520451 is an equidigital number, since it uses as much as digits as its factorization.

1141520451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380506820.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1141520451 is about 33786.3944658201. The cubic root of 1141520451 is about 1045.1081444516.

Adding to 1141520451 its reverse (1540251411), we get a palindrome (2681771862).

The spelling of 1141520451 in words is "one billion, one hundred forty-one million, five hundred twenty thousand, four hundred fifty-one".