120641530 has 16 divisors (see below), whose sum is σ = 220715784. Its totient is φ = 47465280.

The previous prime is 120641501. The next prime is 120641581. The reversal of 120641530 is 35146021.

It can be written as a sum of positive squares in 4 ways, for example, as 88003161 + 32638369 = 9381^2 + 5713^2 .

It is a super-4 number, since 4×120641530⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 98277 + ... + 99496.

Almost surely, 2^120641530 is an apocalyptic number.

120641530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120641530 is a deficient number, since it is larger than the sum of its proper divisors (100074254).

120641530 is a wasteful number, since it uses less digits than its factorization.

120641530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197841.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 120641530 is about 10983.6938231180. The cubic root of 120641530 is about 494.1198248342.

Adding to 120641530 its reverse (35146021), we get a palindrome (155787551).

The spelling of 120641530 in words is "one hundred twenty million, six hundred forty-one thousand, five hundred thirty".