1402154231 has 2 divisors, whose sum is σ = 1402154232. Its totient is φ = 1402154230.

The previous prime is 1402154227. The next prime is 1402154261. The reversal of 1402154231 is 1324512041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1402154231 - 2² = 1402154227 is a prime.

It is a super-2 number, since 2×1402154231² = 3932072975022402722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1402154197 and 1402154206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402154261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701077115 + 701077116.

It is an arithmetic number, because the mean of its divisors is an integer number (701077116).

Almost surely, 2^1402154231 is an apocalyptic number.

1402154231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402154231 is an equidigital number, since it uses as much as digits as its factorization.

1402154231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1402154231 is about 37445.3499249239. The cubic root of 1402154231 is about 1119.2624371718.

Adding to 1402154231 its reverse (1324512041), we get a palindrome (2726666272).

The spelling of 1402154231 in words is "one billion, four hundred two million, one hundred fifty-four thousand, two hundred thirty-one".