126812280 has 64 divisors (see below), whose sum is σ = 434787840. Its totient is φ = 28985472.

The previous prime is 126812243. The next prime is 126812293. The reversal of 126812280 is 82218621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74644 + ... + 76323.

It is an arithmetic number, because the mean of its divisors is an integer number (6793560).

Almost surely, 2^126812280 is an apocalyptic number.

126812280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126812280 is an abundant number, since it is smaller than the sum of its proper divisors (307975560).

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

126812280 is a wasteful number, since it uses less digits than its factorization.

126812280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150988 (or 150984 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 126812280 is about 11261.0958614160. The cubic root of 126812280 is about 502.4047887727.

The spelling of 126812280 in words is "one hundred twenty-six million, eight hundred twelve thousand, two hundred eighty".