152506381 has 2 divisors, whose sum is σ = 152506382. Its totient is φ = 152506380.

The previous prime is 152506373. The next prime is 152506411. The reversal of 152506381 is 183605251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152028900 + 477481 = 12330^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 152506381 - 2³ = 152506373 is a prime.

It is a super-2 number, since 2×152506381² = 46516392491434322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152506301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76253190 + 76253191.

It is an arithmetic number, because the mean of its divisors is an integer number (76253191).

Almost surely, 2^152506381 is an apocalyptic number.

It is an amenable number.

152506381 is a deficient number, since it is larger than the sum of its proper divisors (1).

152506381 is an equidigital number, since it uses as much as digits as its factorization.

152506381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 152506381 is about 12349.3473916641. The cubic root of 152506381 is about 534.2723166516.

The spelling of 152506381 in words is "one hundred fifty-two million, five hundred six thousand, three hundred eighty-one".