5401406123 has 2 divisors, whose sum is σ = 5401406124. Its totient is φ = 5401406122.

The previous prime is 5401406099. The next prime is 5401406137. The reversal of 5401406123 is 3216041045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5401406123 is a prime.

It is a super-2 number, since 2×5401406123² = 58350376211163782258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5401406092 and 5401406101.

It is not a weakly prime, because it can be changed into another prime (5401403123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700703061 + 2700703062.

It is an arithmetic number, because the mean of its divisors is an integer number (2700703062).

Almost surely, 2^5401406123 is an apocalyptic number.

5401406123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5401406123 is an equidigital number, since it uses as much as digits as its factorization.

5401406123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5401406123 is about 73494.2591159337. The cubic root of 5401406123 is about 1754.5629085490.

Adding to 5401406123 its reverse (3216041045), we get a palindrome (8617447168).

The spelling of 5401406123 in words is "five billion, four hundred one million, four hundred six thousand, one hundred twenty-three".