126415290 has 16 divisors (see below), whose sum is σ = 303396768. Its totient is φ = 33710736.

The previous prime is 126415277. The next prime is 126415297. The reversal of 126415290 is 92514621.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4213843 = 126415290 / (1 + 2 + 6 + 4 + 1 + 5 + 2 + 9 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126415297) 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, 2106892 + ... + 2106951.

It is an arithmetic number, because the mean of its divisors is an integer number (18962298).

Almost surely, 2^126415290 is an apocalyptic number.

126415290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126415290 is an abundant number, since it is smaller than the sum of its proper divisors (176981478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126415290 is a wasteful number, since it uses less digits than its factorization.

126415290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213853.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 126415290 is about 11243.4554297155. The cubic root of 126415290 is about 501.8799758557.

It can be divided in two parts, 126 and 415290, that added together give a triangular number (415416 = T₉₁₁).

The spelling of 126415290 in words is "one hundred twenty-six million, four hundred fifteen thousand, two hundred ninety".