1165492225 has 24 divisors (see below), whose sum is σ = 1526277312. Its totient is φ = 881073600.

The previous prime is 1165492189. The next prime is 1165492247. The reversal of 1165492225 is 5222945611.

It is not a de Polignac number, because 1165492225 - 2²³ = 1157103617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35515 + ... + 59935.

It is an arithmetic number, because the mean of its divisors is an integer number (63594888).

It is a Proth number, since it is equal to 2223 ⋅ 2¹⁹ + 1 and 2223 < 2¹⁹.

Almost surely, 2^1165492225 is an apocalyptic number.

It is an amenable number.

1165492225 is a deficient number, since it is larger than the sum of its proper divisors (360785087).

1165492225 is a wasteful number, since it uses less digits than its factorization.

1165492225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24537 (or 24532 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 1165492225 is about 34139.3061587373. The cubic root of 1165492225 is about 1052.3732335857.

The spelling of 1165492225 in words is "one billion, one hundred sixty-five million, four hundred ninety-two thousand, two hundred twenty-five".