120726551 has 8 divisors (see below), whose sum is σ = 138633600. Its totient is φ = 103974840.

The previous prime is 120726533. The next prime is 120726553. The reversal of 120726551 is 155627021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-120726551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120726553) 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, 288611 + ... + 289028.

It is an arithmetic number, because the mean of its divisors is an integer number (17329200).

Almost surely, 2^120726551 is an apocalyptic number.

120726551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120726551 is a deficient number, since it is larger than the sum of its proper divisors (17907049).

120726551 is a wasteful number, since it uses less digits than its factorization.

120726551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577669.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 120726551 is about 10987.5634696688. The cubic root of 120726551 is about 494.2358730327.

The spelling of 120726551 in words is "one hundred twenty million, seven hundred twenty-six thousand, five hundred fifty-one".