361458421 has 4 divisors (see below), whose sum is σ = 362865132. Its totient is φ = 360051712.

The previous prime is 361458397. The next prime is 361458457. The reversal of 361458421 is 124854163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350101521 + 11356900 = 18711^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 361458421 - 2⁵ = 361458389 is a prime.

It is a super-2 number, since 2×361458421² = 261304380223626482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361458121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 702970 + ... + 703483.

It is an arithmetic number, because the mean of its divisors is an integer number (90716283).

Almost surely, 2^361458421 is an apocalyptic number.

It is an amenable number.

361458421 is a deficient number, since it is larger than the sum of its proper divisors (1406711).

361458421 is a wasteful number, since it uses less digits than its factorization.

361458421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406710.

The product of its digits is 23040, while the sum is 34.

The square root of 361458421 is about 19012.0598831373. The cubic root of 361458421 is about 712.3380050715.

The spelling of 361458421 in words is "three hundred sixty-one million, four hundred fifty-eight thousand, four hundred twenty-one".