1151456565 has 32 divisors (see below), whose sum is σ = 2106961920. Its totient is φ = 526019904.

The previous prime is 1151456543. The next prime is 1151456569. The reversal of 1151456565 is 5656541511.

It is not a de Polignac number, because 1151456565 - 2⁷ = 1151456437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151456569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205876 + ... + 211394.

It is an arithmetic number, because the mean of its divisors is an integer number (65842560).

Almost surely, 2^1151456565 is an apocalyptic number.

1151456565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151456565 is a deficient number, since it is larger than the sum of its proper divisors (955505355).

1151456565 is a wasteful number, since it uses less digits than its factorization.

1151456565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521.

The product of its digits is 90000, while the sum is 39.

The square root of 1151456565 is about 33933.1189989957. The cubic root of 1151456565 is about 1048.1316934931.

The spelling of 1151456565 in words is "one billion, one hundred fifty-one million, four hundred fifty-six thousand, five hundred sixty-five".