1150021071 has 24 divisors (see below), whose sum is σ = 1782078480. Its totient is φ = 740238912.

The previous prime is 1150020997. The next prime is 1150021099. The reversal of 1150021071 is 1701200511.

It is a happy number.

It is not a de Polignac number, because 1150021071 - 2⁷ = 1150020943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150021771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74550 + ... + 88643.

It is an arithmetic number, because the mean of its divisors is an integer number (74253270).

Almost surely, 2^1150021071 is an apocalyptic number.

1150021071 is a deficient number, since it is larger than the sum of its proper divisors (632057409).

1150021071 is an equidigital number, since it uses as much as digits as its factorization.

1150021071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163237 (or 163225 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 1150021071 is about 33911.9605891491. The cubic root of 1150021071 is about 1047.6959519345.

Adding to 1150021071 its reverse (1701200511), we get a palindrome (2851221582).

The spelling of 1150021071 in words is "one billion, one hundred fifty million, twenty-one thousand, seventy-one".