126401270 has 16 divisors (see below), whose sum is σ = 228048480. Its totient is φ = 50443584.

The previous prime is 126401263. The next prime is 126401279. The reversal of 126401270 is 72104621.

It is a super-2 number, since 2×126401270² = 31954562115225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126401279) 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, 10007 + ... + 18786.

It is an arithmetic number, because the mean of its divisors is an integer number (14253030).

Almost surely, 2^126401270 is an apocalyptic number.

126401270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126401270 is a deficient number, since it is larger than the sum of its proper divisors (101647210).

126401270 is a wasteful number, since it uses less digits than its factorization.

126401270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29239.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 126401270 is about 11242.8319386176. The cubic root of 126401270 is about 501.8614216196.

Adding to 126401270 its reverse (72104621), we get a palindrome (198505891).

The spelling of 126401270 in words is "one hundred twenty-six million, four hundred one thousand, two hundred seventy".