1151512451 has 8 divisors (see below), whose sum is σ = 1174831104. Its totient is φ = 1128374280.

The previous prime is 1151512447. The next prime is 1151512463. The reversal of 1151512451 is 1542151511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151512451 - 2² = 1151512447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151512451.

It is not an unprimeable number, because it can be changed into a prime (1151512441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32195 + ... + 57788.

It is an arithmetic number, because the mean of its divisors is an integer number (146853888).

Almost surely, 2^1151512451 is an apocalyptic number.

1151512451 is a deficient number, since it is larger than the sum of its proper divisors (23318653).

1151512451 is an equidigital number, since it uses as much as digits as its factorization.

1151512451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90241.

The product of its digits is 1000, while the sum is 26.

The square root of 1151512451 is about 33933.9424617889. The cubic root of 1151512451 is about 1048.1486502596.

Adding to 1151512451 its reverse (1542151511), we get a palindrome (2693663962).

The spelling of 1151512451 in words is "one billion, one hundred fifty-one million, five hundred twelve thousand, four hundred fifty-one".