1151201865 has 96 divisors (see below), whose sum is σ = 2137322880. Its totient is φ = 528992640.

The previous prime is 1151201837. The next prime is 1151201873. The reversal of 1151201865 is 5681021511.

It is not a de Polignac number, because 1151201865 - 2²³ = 1142813257 is a prime.

It is a super-3 number, since 3×1151201865³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10561431 + ... + 10561539.

It is an arithmetic number, because the mean of its divisors is an integer number (22263780).

Almost surely, 2^1151201865 is an apocalyptic number.

1151201865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151201865 is a deficient number, since it is larger than the sum of its proper divisors (986121015).

1151201865 is a wasteful number, since it uses less digits than its factorization.

1151201865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 30.

The square root of 1151201865 is about 33929.3658207754. The cubic root of 1151201865 is about 1048.0544062159.

The spelling of 1151201865 in words is "one billion, one hundred fifty-one million, two hundred one thousand, eight hundred sixty-five".