1155413501 has 4 divisors (see below), whose sum is σ = 1260451104. Its totient is φ = 1050375900.

The previous prime is 1155413477. The next prime is 1155413509. The reversal of 1155413501 is 1053145511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155413501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155413509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52518785 + ... + 52518806.

It is an arithmetic number, because the mean of its divisors is an integer number (315112776).

Almost surely, 2^1155413501 is an apocalyptic number.

1155413501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1155413501 is a deficient number, since it is larger than the sum of its proper divisors (105037603).

1155413501 is a wasteful number, since it uses less digits than its factorization.

1155413501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105037602.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1155413501 is about 33991.3739204522. The cubic root of 1155413501 is about 1049.3309421734.

The spelling of 1155413501 in words is "one billion, one hundred fifty-five million, four hundred thirteen thousand, five hundred one".