1154412451 has 4 divisors (see below), whose sum is σ = 1176193872. Its totient is φ = 1132631032.

The previous prime is 1154412433. The next prime is 1154412461. The reversal of 1154412451 is 1542144511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1542144511 = 17 ⋅90714383.

It is a cyclic number.

It is not a de Polignac number, because 1154412451 - 2⁹ = 1154411939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154412401) 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, 10890631 + ... + 10890736.

It is an arithmetic number, because the mean of its divisors is an integer number (294048468).

Almost surely, 2^1154412451 is an apocalyptic number.

1154412451 is a deficient number, since it is larger than the sum of its proper divisors (21781421).

1154412451 is an equidigital number, since it uses as much as digits as its factorization.

1154412451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21781420.

The product of its digits is 3200, while the sum is 28.

The square root of 1154412451 is about 33976.6456702247. The cubic root of 1154412451 is about 1049.0278079132.

Adding to 1154412451 its reverse (1542144511), we get a palindrome (2696556962).

The spelling of 1154412451 in words is "one billion, one hundred fifty-four million, four hundred twelve thousand, four hundred fifty-one".