152956381 has 2 divisors, whose sum is σ = 152956382. Its totient is φ = 152956380.

The previous prime is 152956333. The next prime is 152956421. The reversal of 152956381 is 183659251.

It is an a-pointer prime, because the next prime (152956421) can be obtained adding 152956381 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152300281 + 656100 = 12341^2 + 810^2 .

It is an emirp because it is prime and its reverse (183659251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152956381 - 2¹³ = 152948189 is a prime.

It is a super-2 number, since 2×152956381² = 46791308977234322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152956481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76478190 + 76478191.

It is an arithmetic number, because the mean of its divisors is an integer number (76478191).

Almost surely, 2^152956381 is an apocalyptic number.

It is an amenable number.

152956381 is a deficient number, since it is larger than the sum of its proper divisors (1).

152956381 is an equidigital number, since it uses as much as digits as its factorization.

152956381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 152956381 is about 12367.5535575958. The cubic root of 152956381 is about 534.7972924078.

The spelling of 152956381 in words is "one hundred fifty-two million, nine hundred fifty-six thousand, three hundred eighty-one".