1165155470 has 16 divisors (see below), whose sum is σ = 2105986608. Its totient is φ = 464127360.

The previous prime is 1165155451. The next prime is 1165155479. The reversal of 1165155470 is 745515611.

It is a self number, because there is not a number n which added to its sum of digits gives 1165155470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165155479) 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, 239324 + ... + 244143.

It is an arithmetic number, because the mean of its divisors is an integer number (131624163).

Almost surely, 2^1165155470 is an apocalyptic number.

1165155470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165155470 is a deficient number, since it is larger than the sum of its proper divisors (940831138).

1165155470 is a wasteful number, since it uses less digits than its factorization.

1165155470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483715.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 1165155470 is about 34134.3737308889. The cubic root of 1165155470 is about 1052.2718669475.

The spelling of 1165155470 in words is "one billion, one hundred sixty-five million, one hundred fifty-five thousand, four hundred seventy".