1148156465 has 4 divisors (see below), whose sum is σ = 1377787764. Its totient is φ = 918525168.

The previous prime is 1148156447. The next prime is 1148156473. The reversal of 1148156465 is 5646518411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 567201856 + 580954609 = 23816^2 + 24103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148156465 - 2⁸ = 1148156209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114815642 + ... + 114815651.

It is an arithmetic number, because the mean of its divisors is an integer number (344446941).

Almost surely, 2^1148156465 is an apocalyptic number.

It is an amenable number.

1148156465 is a deficient number, since it is larger than the sum of its proper divisors (229631299).

1148156465 is an equidigital number, since it uses as much as digits as its factorization.

1148156465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229631298.

The product of its digits is 115200, while the sum is 41.

The square root of 1148156465 is about 33884.4575727575. The cubic root of 1148156465 is about 1047.1294124854.

The spelling of 1148156465 in words is "one billion, one hundred forty-eight million, one hundred fifty-six thousand, four hundred sixty-five".