126420154 has 16 divisors (see below), whose sum is σ = 217382976. Its totient is φ = 54014400.

The previous prime is 126420131. The next prime is 126420181. The reversal of 126420154 is 451024621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9007 + ... + 18274.

It is an arithmetic number, because the mean of its divisors is an integer number (13586436).

Almost surely, 2^126420154 is an apocalyptic number.

126420154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

126420154 is a deficient number, since it is larger than the sum of its proper divisors (90962822).

126420154 is a wasteful number, since it uses less digits than its factorization.

126420154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27621.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 126420154 is about 11243.6717312451. The cubic root of 126420154 is about 501.8864126111.

Adding to 126420154 its reverse (451024621), we get a palindrome (577444775).

The spelling of 126420154 in words is "one hundred twenty-six million, four hundred twenty thousand, one hundred fifty-four".