1421089307 has 4 divisors (see below), whose sum is σ = 1550279256. Its totient is φ = 1291899360.

The previous prime is 1421089283. The next prime is 1421089331. The reversal of 1421089307 is 7039801241.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1421089283) and next prime (1421089331).

It is a cyclic number.

It is not a de Polignac number, because 1421089307 - 2¹⁰ = 1421088283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421089387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64594958 + ... + 64594979.

It is an arithmetic number, because the mean of its divisors is an integer number (387569814).

Almost surely, 2^1421089307 is an apocalyptic number.

1421089307 is a deficient number, since it is larger than the sum of its proper divisors (129189949).

1421089307 is a wasteful number, since it uses less digits than its factorization.

1421089307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129189948.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1421089307 is about 37697.3381951564. The cubic root of 1421089307 is about 1124.2782022131.

The spelling of 1421089307 in words is "one billion, four hundred twenty-one million, eighty-nine thousand, three hundred seven".