1151121514 has 4 divisors (see below), whose sum is σ = 1726682274. Its totient is φ = 575560756.

The previous prime is 1151121487. The next prime is 1151121529. The reversal of 1151121514 is 4151211511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4151211511 = 23 ⋅180487457.

It can be written as a sum of positive squares in only one way, i.e., 1074856225 + 76265289 = 32785^2 + 8733^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287780377 + ... + 287780380.

Almost surely, 2^1151121514 is an apocalyptic number.

1151121514 is a deficient number, since it is larger than the sum of its proper divisors (575560760).

1151121514 is an equidigital number, since it uses as much as digits as its factorization.

1151121514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575560759.

The product of its digits is 200, while the sum is 22.

The square root of 1151121514 is about 33928.1817078369. The cubic root of 1151121514 is about 1048.0300217931.

The spelling of 1151121514 in words is "one billion, one hundred fifty-one million, one hundred twenty-one thousand, five hundred fourteen".