1157072210 has 32 divisors (see below), whose sum is σ = 2457050112. Its totient is φ = 383912640.

The previous prime is 1157072197. The next prime is 1157072221. The reversal of 1157072210 is 122707511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157072210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264437 + ... + 268776.

It is an arithmetic number, because the mean of its divisors is an integer number (76782816).

Almost surely, 2^1157072210 is an apocalyptic number.

1157072210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157072210 is an abundant number, since it is smaller than the sum of its proper divisors (1299977902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157072210 is a wasteful number, since it uses less digits than its factorization.

1157072210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533258.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 1157072210 is about 34015.7641395868. The cubic root of 1157072210 is about 1049.8328411148.

Adding to 1157072210 its reverse (122707511), we get a palindrome (1279779721).

The spelling of 1157072210 in words is "one billion, one hundred fifty-seven million, seventy-two thousand, two hundred ten".