1407123221 has 8 divisors (see below), whose sum is σ = 1608480384. Its totient is φ = 1205850960.

The previous prime is 1407123217. The next prime is 1407123257. The reversal of 1407123221 is 1223217041.

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 1407123221 - 2² = 1407123217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407123521) 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, 19511 + ... + 56523.

It is an arithmetic number, because the mean of its divisors is an integer number (201060048).

Almost surely, 2^1407123221 is an apocalyptic number.

It is an amenable number.

1407123221 is a deficient number, since it is larger than the sum of its proper divisors (201357163).

1407123221 is an equidigital number, since it uses as much as digits as its factorization.

1407123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42451.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1407123221 is about 37511.6411397849. The cubic root of 1407123221 is about 1120.5830353519.

The spelling of 1407123221 in words is "one billion, four hundred seven million, one hundred twenty-three thousand, two hundred twenty-one".