126698051 has 2 divisors, whose sum is σ = 126698052. Its totient is φ = 126698050.

The previous prime is 126698021. The next prime is 126698063. The reversal of 126698051 is 150896621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126698051 is a prime.

It is a super-2 number, since 2×126698051² = 32104792254397202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126697996 and 126698014.

It is not a weakly prime, because it can be changed into another prime (126698021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63349025 + 63349026.

It is an arithmetic number, because the mean of its divisors is an integer number (63349026).

Almost surely, 2^126698051 is an apocalyptic number.

126698051 is a deficient number, since it is larger than the sum of its proper divisors (1).

126698051 is an equidigital number, since it uses as much as digits as its factorization.

126698051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 126698051 is about 11256.0228766647. The cubic root of 126698051 is about 502.2538926692.

The spelling of 126698051 in words is "one hundred twenty-six million, six hundred ninety-eight thousand, fifty-one".