1213457910 has 32 divisors (see below), whose sum is σ = 3328342272. Its totient is φ = 277361760.

The previous prime is 1213457887. The next prime is 1213457911. The reversal of 1213457910 is 197543121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213457911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888976 + ... + 2889395.

It is an arithmetic number, because the mean of its divisors is an integer number (104010696).

Almost surely, 2^1213457910 is an apocalyptic number.

1213457910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213457910 is an abundant number, since it is smaller than the sum of its proper divisors (2114884362).

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

1213457910 is a wasteful number, since it uses less digits than its factorization.

1213457910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778388.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1213457910 is about 34834.7227633578. The cubic root of 1213457910 is about 1066.6163558085.

The spelling of 1213457910 in words is "one billion, two hundred thirteen million, four hundred fifty-seven thousand, nine hundred ten".