120061537 has 4 divisors (see below), whose sum is σ = 124201620. Its totient is φ = 115921456.

The previous prime is 120061507. The next prime is 120061553. The reversal of 120061537 is 735160021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93683041 + 26378496 = 9679^2 + 5136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120061537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120061507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069998 + ... + 2070055.

It is an arithmetic number, because the mean of its divisors is an integer number (31050405).

Almost surely, 2^120061537 is an apocalyptic number.

It is an amenable number.

120061537 is a deficient number, since it is larger than the sum of its proper divisors (4140083).

120061537 is an equidigital number, since it uses as much as digits as its factorization.

120061537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140082.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 120061537 is about 10957.2595570243. The cubic root of 120061537 is about 493.3267133983.

The spelling of 120061537 in words is "one hundred twenty million, sixty-one thousand, five hundred thirty-seven".