120275261 has 4 divisors (see below), whose sum is σ = 120389472. Its totient is φ = 120161052.

The previous prime is 120275249. The next prime is 120275293. The reversal of 120275261 is 162572021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162572021 = 887 ⋅183283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120275261 is a prime.

It is a super-2 number, since 2×120275261² = 28932276817236242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120275261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120275231) 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, 55511 + ... + 57636.

It is an arithmetic number, because the mean of its divisors is an integer number (30097368).

Almost surely, 2^120275261 is an apocalyptic number.

It is an amenable number.

120275261 is a deficient number, since it is larger than the sum of its proper divisors (114211).

120275261 is a wasteful number, since it uses less digits than its factorization.

120275261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114210.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 120275261 is about 10967.0078417041. The cubic root of 120275261 is about 493.6192668675.

The spelling of 120275261 in words is "one hundred twenty million, two hundred seventy-five thousand, two hundred sixty-one".