120152381 has 2 divisors, whose sum is σ = 120152382. Its totient is φ = 120152380.

The previous prime is 120152369. The next prime is 120152399. The reversal of 120152381 is 183251021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64947481 + 55204900 = 8059^2 + 7430^2 .

It is an emirp because it is prime and its reverse (183251021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120152381 - 2⁶ = 120152317 is a prime.

It is a super-2 number, since 2×120152381² = 28873189319938322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120152321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60076190 + 60076191.

It is an arithmetic number, because the mean of its divisors is an integer number (60076191).

Almost surely, 2^120152381 is an apocalyptic number.

It is an amenable number.

120152381 is a deficient number, since it is larger than the sum of its proper divisors (1).

120152381 is an equidigital number, since it uses as much as digits as its factorization.

120152381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 120152381 is about 10961.4041527534. The cubic root of 120152381 is about 493.4511064793.

The spelling of 120152381 in words is "one hundred twenty million, one hundred fifty-two thousand, three hundred eighty-one".