1151515451 has 8 divisors (see below), whose sum is σ = 1220464224. Its totient is φ = 1082701440.

The previous prime is 1151515439. The next prime is 1151515481. The reversal of 1151515451 is 1545151511.

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

It is not a de Polignac number, because 1151515451 - 2¹⁴ = 1151499067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151515481) 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, 15815 + ... + 50528.

It is an arithmetic number, because the mean of its divisors is an integer number (152558028).

Almost surely, 2^1151515451 is an apocalyptic number.

1151515451 is a deficient number, since it is larger than the sum of its proper divisors (68948773).

1151515451 is a wasteful number, since it uses less digits than its factorization.

1151515451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67381.

The product of its digits is 2500, while the sum is 29.

The square root of 1151515451 is about 33933.9866652888. The cubic root of 1151515451 is about 1048.1495604953.

Adding to 1151515451 its reverse (1545151511), we get a palindrome (2696666962).

The spelling of 1151515451 in words is "one billion, one hundred fifty-one million, five hundred fifteen thousand, four hundred fifty-one".