1151012451 has 4 divisors (see below), whose sum is σ = 1534683272. Its totient is φ = 767341632.

The previous prime is 1151012441. The next prime is 1151012459. The reversal of 1151012451 is 1542101511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1542101511 = 3 ⋅514033837.

It is not a de Polignac number, because 1151012451 - 2¹⁰ = 1151011427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151012459) 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, 191835406 + ... + 191835411.

It is an arithmetic number, because the mean of its divisors is an integer number (383670818).

Almost surely, 2^1151012451 is an apocalyptic number.

1151012451 is a deficient number, since it is larger than the sum of its proper divisors (383670821).

1151012451 is an equidigital number, since it uses as much as digits as its factorization.

1151012451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383670820.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1151012451 is about 33926.5744070927. The cubic root of 1151012451 is about 1047.9969222153.

Adding to 1151012451 its reverse (1542101511), we get a palindrome (2693113962).

The spelling of 1151012451 in words is "one billion, one hundred fifty-one million, twelve thousand, four hundred fifty-one".