126420250 has 32 divisors (see below), whose sum is σ = 258178752. Its totient is φ = 45970000.

The previous prime is 126420233. The next prime is 126420253. The reversal of 126420250 is 52024621.

It is a super-2 number, since 2×126420250² = 31964159220125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (126420253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20236 + ... + 25735.

It is an arithmetic number, because the mean of its divisors is an integer number (8068086).

Almost surely, 2^126420250 is an apocalyptic number.

126420250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126420250 is an abundant number, since it is smaller than the sum of its proper divisors (131758502).

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

126420250 is a wasteful number, since it uses less digits than its factorization.

126420250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45999 (or 45989 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 126420250 is about 11243.6760003124. The cubic root of 126420250 is about 501.8865396506.

Adding to 126420250 its reverse (52024621), we get a palindrome (178444871).

The spelling of 126420250 in words is "one hundred twenty-six million, four hundred twenty thousand, two hundred fifty".