452155381 has 2 divisors, whose sum is σ = 452155382. Its totient is φ = 452155380.

The previous prime is 452155313. The next prime is 452155393. The reversal of 452155381 is 183551254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447703281 + 4452100 = 21159^2 + 2110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452155381 is a prime.

It is a super-2 number, since 2×452155381² = 408888977134510322, which contains 22 as substring.

It is equal to p_23961175 and since 452155381 and 23961175 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452155981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226077690 + 226077691.

It is an arithmetic number, because the mean of its divisors is an integer number (226077691).

Almost surely, 2^452155381 is an apocalyptic number.

452155381 is the 13449-th centered pentagonal number.

It is an amenable number.

452155381 is a deficient number, since it is larger than the sum of its proper divisors (1).

452155381 is an equidigital number, since it uses as much as digits as its factorization.

452155381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24000, while the sum is 34.

The square root of 452155381 is about 21263.9455652050. The cubic root of 452155381 is about 767.5309573822.

The spelling of 452155381 in words is "four hundred fifty-two million, one hundred fifty-five thousand, three hundred eighty-one".