126325551 has 32 divisors (see below), whose sum is σ = 190955520. Its totient is φ = 73612800.

The previous prime is 126325531. The next prime is 126325559. The reversal of 126325551 is 155523621.

It is a happy number.

It is not a de Polignac number, because 126325551 - 2²³ = 117936943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126325559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98130 + ... + 99408.

It is an arithmetic number, because the mean of its divisors is an integer number (5967360).

Almost surely, 2^126325551 is an apocalyptic number.

126325551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126325551 is a deficient number, since it is larger than the sum of its proper divisors (64629969).

126325551 is a wasteful number, since it uses less digits than its factorization.

126325551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

The product of its digits is 9000, while the sum is 30.

The square root of 126325551 is about 11239.4639996754. The cubic root of 126325551 is about 501.7611904658.

The spelling of 126325551 in words is "one hundred twenty-six million, three hundred twenty-five thousand, five hundred fifty-one".