120061553 has 2 divisors, whose sum is σ = 120061554. Its totient is φ = 120061552.

The previous prime is 120061507. The next prime is 120061561. The reversal of 120061553 is 355160021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110923024 + 9138529 = 10532^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 120061553 - 2¹⁴ = 120045169 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120061153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60030776 + 60030777.

It is an arithmetic number, because the mean of its divisors is an integer number (60030777).

Almost surely, 2^120061553 is an apocalyptic number.

It is an amenable number.

120061553 is a deficient number, since it is larger than the sum of its proper divisors (1).

120061553 is an equidigital number, since it uses as much as digits as its factorization.

120061553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 120061553 is about 10957.2602871338. The cubic root of 120061553 is about 493.3267353127.

The spelling of 120061553 in words is "one hundred twenty million, sixty-one thousand, five hundred fifty-three".