1421446231 has 8 divisors (see below), whose sum is σ = 1446492240. Its totient is φ = 1396432128.

The previous prime is 1421446181. The next prime is 1421446241. The reversal of 1421446231 is 1326441241.

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 1421446231 - 2⁹ = 1421445719 is a prime.

It is a super-2 number, since 2×1421446231² = 4041018775248210722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421446231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421446241) 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, 93025 + ... + 107221.

It is an arithmetic number, because the mean of its divisors is an integer number (180811530).

Almost surely, 2^1421446231 is an apocalyptic number.

1421446231 is a deficient number, since it is larger than the sum of its proper divisors (25046009).

1421446231 is a wasteful number, since it uses less digits than its factorization.

1421446231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15953.

The product of its digits is 4608, while the sum is 28.

The square root of 1421446231 is about 37702.0719722405. The cubic root of 1421446231 is about 1124.3723197515.

Adding to 1421446231 its reverse (1326441241), we get a palindrome (2747887472).

The spelling of 1421446231 in words is "one billion, four hundred twenty-one million, four hundred forty-six thousand, two hundred thirty-one".