1213740361 has 8 divisors (see below), whose sum is σ = 1251604224. Its totient is φ = 1176378240.

The previous prime is 1213740323. The next prime is 1213740377. The reversal of 1213740361 is 1630473121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213740361 - 2⁷ = 1213740233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213740301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120520 + ... + 130201.

It is an arithmetic number, because the mean of its divisors is an integer number (156450528).

Almost surely, 2^1213740361 is an apocalyptic number.

It is an amenable number.

1213740361 is a deficient number, since it is larger than the sum of its proper divisors (37863863).

1213740361 is a wasteful number, since it uses less digits than its factorization.

1213740361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250871.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1213740361 is about 34838.7766863304. The cubic root of 1213740361 is about 1066.6991065112.

The spelling of 1213740361 in words is "one billion, two hundred thirteen million, seven hundred forty thousand, three hundred sixty-one".