105951431 has 2 divisors, whose sum is σ = 105951432. Its totient is φ = 105951430.

The previous prime is 105951389. The next prime is 105951457. The reversal of 105951431 is 134159501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105951431 - 2²⁶ = 38842567 is a prime.

It is a super-2 number, since 2×105951431² = 22451411461895522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105951394 and 105951403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105951491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52975715 + 52975716.

It is an arithmetic number, because the mean of its divisors is an integer number (52975716).

Almost surely, 2^105951431 is an apocalyptic number.

105951431 is a deficient number, since it is larger than the sum of its proper divisors (1).

105951431 is an equidigital number, since it uses as much as digits as its factorization.

105951431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 105951431 is about 10293.2711515825. The cubic root of 105951431 is about 473.1900554351.

The spelling of 105951431 in words is "one hundred five million, nine hundred fifty-one thousand, four hundred thirty-one".