120155461 has 8 divisors (see below), whose sum is σ = 123248664. Its totient is φ = 117070080.

The previous prime is 120155443. The next prime is 120155471. The reversal of 120155461 is 164551021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1454436 + 118701025 = 1206^2 + 10895^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120155461 - 2¹⁷ = 120024389 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 (120155471) 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, 40935 + ... + 43771.

It is an arithmetic number, because the mean of its divisors is an integer number (15406083).

Almost surely, 2^120155461 is an apocalyptic number.

It is an amenable number.

120155461 is a deficient number, since it is larger than the sum of its proper divisors (3093203).

120155461 is a wasteful number, since it uses less digits than its factorization.

120155461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 120155461 is about 10961.5446448026. The cubic root of 120155461 is about 493.4553228375.

The spelling of 120155461 in words is "one hundred twenty million, one hundred fifty-five thousand, four hundred sixty-one".