1420259231 has 8 divisors (see below), whose sum is σ = 1440270720. Its totient is φ = 1400316952.

The previous prime is 1420259129. The next prime is 1420259249. The reversal of 1420259231 is 1329520241.

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 1420259231 - 2³⁰ = 346517407 is a prime.

It is a super-2 number, since 2×1420259231² = 4034272566481422722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420259194 and 1420259203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420259531) 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, 24740 + ... + 58758.

It is an arithmetic number, because the mean of its divisors is an integer number (180033840).

Almost surely, 2^1420259231 is an apocalyptic number.

1420259231 is a deficient number, since it is larger than the sum of its proper divisors (20011489).

1420259231 is an equidigital number, since it uses as much as digits as its factorization.

1420259231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34605.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1420259231 is about 37686.3268440956. The cubic root of 1420259231 is about 1124.0592579351.

Adding to 1420259231 its reverse (1329520241), we get a palindrome (2749779472).

The spelling of 1420259231 in words is "one billion, four hundred twenty million, two hundred fifty-nine thousand, two hundred thirty-one".