126365890 has 16 divisors (see below), whose sum is σ = 259952832. Its totient is φ = 43325424.

The previous prime is 126365861. The next prime is 126365891. The reversal of 126365890 is 98563621.

It is not an unprimeable number, because it can be changed into a prime (126365891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902544 + ... + 902683.

It is an arithmetic number, because the mean of its divisors is an integer number (16247052).

Almost surely, 2^126365890 is an apocalyptic number.

126365890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126365890 is an abundant number, since it is smaller than the sum of its proper divisors (133586942).

126365890 is a wasteful number, since it uses less digits than its factorization.

126365890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805241.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 126365890 is about 11241.2583815158. The cubic root of 126365890 is about 501.8145932030.

The spelling of 126365890 in words is "one hundred twenty-six million, three hundred sixty-five thousand, eight hundred ninety".