126740377 has 4 divisors (see below), whose sum is σ = 127043280. Its totient is φ = 126437476.

The previous prime is 126740359. The next prime is 126740387. The reversal of 126740377 is 773047621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773047621 = 251 ⋅3079871.

It is a cyclic number.

It is not a de Polignac number, because 126740377 - 2¹⁹ = 126216089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126740387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150823 + ... + 151660.

It is an arithmetic number, because the mean of its divisors is an integer number (31760820).

Almost surely, 2^126740377 is an apocalyptic number.

It is an amenable number.

126740377 is a deficient number, since it is larger than the sum of its proper divisors (302903).

126740377 is an equidigital number, since it uses as much as digits as its factorization.

126740377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302902.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 126740377 is about 11257.9028686519. The cubic root of 126740377 is about 502.3098157379.

Adding to 126740377 its reverse (773047621), we get a palindrome (899787998).

The spelling of 126740377 in words is "one hundred twenty-six million, seven hundred forty thousand, three hundred seventy-seven".