126807290 has 16 divisors (see below), whose sum is σ = 228659112. Its totient is φ = 50632704.

The previous prime is 126807287. The next prime is 126807293. The reversal of 126807290 is 92708621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126807287) and next prime (126807293).

It can be written as a sum of positive squares in 4 ways, for example, as 124701889 + 2105401 = 11167^2 + 1451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126807290.

It is not an unprimeable number, because it can be changed into a prime (126807293) 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, 5219 + ... + 16758.

Almost surely, 2^126807290 is an apocalyptic number.

126807290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126807290 is a deficient number, since it is larger than the sum of its proper divisors (101851822).

126807290 is a wasteful number, since it uses less digits than its factorization.

126807290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22561.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 126807290 is about 11260.8742999822. The cubic root of 126807290 is about 502.3981988936.

The spelling of 126807290 in words is "one hundred twenty-six million, eight hundred seven thousand, two hundred ninety".