1165101401 has 4 divisors (see below), whose sum is σ = 1179849600. Its totient is φ = 1150353204.

The previous prime is 1165101397. The next prime is 1165101407. The reversal of 1165101401 is 1041015611.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1041015611 = 1367 ⋅761533.

It is a cyclic number.

It is not a de Polignac number, because 1165101401 - 2² = 1165101397 is a prime.

It is a super-2 number, since 2×1165101401² = 2714922549224325602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165101407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7373981 + ... + 7374138.

It is an arithmetic number, because the mean of its divisors is an integer number (294962400).

Almost surely, 2^1165101401 is an apocalyptic number.

It is an amenable number.

1165101401 is a deficient number, since it is larger than the sum of its proper divisors (14748199).

1165101401 is an equidigital number, since it uses as much as digits as its factorization.

1165101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748198.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 1165101401 is about 34133.5817194739. The cubic root of 1165101401 is about 1052.2555898156.

The spelling of 1165101401 in words is "one billion, one hundred sixty-five million, one hundred one thousand, four hundred one".