126900493 has 2 divisors, whose sum is σ = 126900494. Its totient is φ = 126900492.

The previous prime is 126900463. The next prime is 126900503. The reversal of 126900493 is 394009621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63968004 + 62932489 = 7998^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 126900493 - 2¹⁷ = 126769421 is a prime.

It is a super-2 number, since 2×126900493² = 32207470247286098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126900463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63450246 + 63450247.

It is an arithmetic number, because the mean of its divisors is an integer number (63450247).

Almost surely, 2^126900493 is an apocalyptic number.

It is an amenable number.

126900493 is a deficient number, since it is larger than the sum of its proper divisors (1).

126900493 is an equidigital number, since it uses as much as digits as its factorization.

126900493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 126900493 is about 11265.0118952445. The cubic root of 126900493 is about 502.5212558354.

The spelling of 126900493 in words is "one hundred twenty-six million, nine hundred thousand, four hundred ninety-three".