1156215346 has 32 divisors (see below), whose sum is σ = 2040893568. Its totient is φ = 484323840.

The previous prime is 1156215343. The next prime is 1156215349. The reversal of 1156215346 is 6435126511.

It is an interprime number because it is at equal distance from previous prime (1156215343) and next prime (1156215349).

It is not an unprimeable number, because it can be changed into a prime (1156215343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189475 + ... + 195481.

It is an arithmetic number, because the mean of its divisors is an integer number (63777924).

Almost surely, 2^1156215346 is an apocalyptic number.

1156215346 is a deficient number, since it is larger than the sum of its proper divisors (884678222).

1156215346 is a wasteful number, since it uses less digits than its factorization.

1156215346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its digits is 21600, while the sum is 34.

The square root of 1156215346 is about 34003.1667054702. The cubic root of 1156215346 is about 1049.5736276427.

The spelling of 1156215346 in words is "one billion, one hundred fifty-six million, two hundred fifteen thousand, three hundred forty-six".