126381487 has 2 divisors, whose sum is σ = 126381488. Its totient is φ = 126381486.

The previous prime is 126381461. The next prime is 126381499. The reversal of 126381487 is 784183621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126381487 - 2¹¹ = 126379439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126381287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63190743 + 63190744.

It is an arithmetic number, because the mean of its divisors is an integer number (63190744).

Almost surely, 2^126381487 is an apocalyptic number.

126381487 is a deficient number, since it is larger than the sum of its proper divisors (1).

126381487 is an equidigital number, since it uses as much as digits as its factorization.

126381487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 126381487 is about 11241.9520991685. The cubic root of 126381487 is about 501.8352382263.

The spelling of 126381487 in words is "one hundred twenty-six million, three hundred eighty-one thousand, four hundred eighty-seven".