120554431 has 4 divisors (see below), whose sum is σ = 125795952. Its totient is φ = 115312912.

The previous prime is 120554417. The next prime is 120554501. The reversal of 120554431 is 134455021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120554431 - 2⁷ = 120554303 is a prime.

It is a super-2 number, since 2×120554431² = 29066741667467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120554396 and 120554405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120552431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2620726 + ... + 2620771.

It is an arithmetic number, because the mean of its divisors is an integer number (31448988).

Almost surely, 2^120554431 is an apocalyptic number.

120554431 is a deficient number, since it is larger than the sum of its proper divisors (5241521).

120554431 is an equidigital number, since it uses as much as digits as its factorization.

120554431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241520.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 120554431 is about 10979.7281842494. The cubic root of 120554431 is about 494.0008837478. Note that the first 3 decimals are identical.

The spelling of 120554431 in words is "one hundred twenty million, five hundred fifty-four thousand, four hundred thirty-one".