1151379553 has 8 divisors (see below), whose sum is σ = 1225846440. Its totient is φ = 1077661440.

The previous prime is 1151379533. The next prime is 1151379611. The reversal of 1151379553 is 3559731511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141919569 + 1009459984 = 11913^2 + 31772^2 .

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 1151379553 - 2¹⁷ = 1151248481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151379533) 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, 184018 + ... + 190171.

It is an arithmetic number, because the mean of its divisors is an integer number (153230805).

Almost surely, 2^1151379553 is an apocalyptic number.

It is an amenable number.

1151379553 is a deficient number, since it is larger than the sum of its proper divisors (74466887).

1151379553 is a wasteful number, since it uses less digits than its factorization.

1151379553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374387.

The product of its digits is 70875, while the sum is 40.

The square root of 1151379553 is about 33931.9842184332. The cubic root of 1151379553 is about 1048.1083258386.

The spelling of 1151379553 in words is "one billion, one hundred fifty-one million, three hundred seventy-nine thousand, five hundred fifty-three".