1151755379 has 4 divisors (see below), whose sum is σ = 1153289760. Its totient is φ = 1150221000.

The previous prime is 1151755361. The next prime is 1151755421. The reversal of 1151755379 is 9735571511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151755379 - 2¹² = 1151751283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151775379) 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, 766064 + ... + 767565.

It is an arithmetic number, because the mean of its divisors is an integer number (288322440).

Almost surely, 2^1151755379 is an apocalyptic number.

1151755379 is a deficient number, since it is larger than the sum of its proper divisors (1534381).

1151755379 is an equidigital number, since it uses as much as digits as its factorization.

1151755379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534380.

The product of its digits is 165375, while the sum is 44.

The square root of 1151755379 is about 33937.5216979673. The cubic root of 1151755379 is about 1048.2223523869. Note that the first 3 decimals are identical.

The spelling of 1151755379 in words is "one billion, one hundred fifty-one million, seven hundred fifty-five thousand, three hundred seventy-nine".