361275493 has 4 divisors (see below), whose sum is σ = 361529740. Its totient is φ = 361021248.

The previous prime is 361275463. The next prime is 361275527. The reversal of 361275493 is 394572163.

It is a happy number.

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 101646724 + 259628769 = 10082^2 + 16113^2 .

It is a cyclic number.

It is not a de Polignac number, because 361275493 - 2⁵ = 361275461 is a prime.

It is a super-4 number, since 4×361275493⁴ (a number of 35 digits) contains 4444 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 (361275463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124980 + ... + 127837.

It is an arithmetic number, because the mean of its divisors is an integer number (90382435).

Almost surely, 2^361275493 is an apocalyptic number.

It is an amenable number.

361275493 is a deficient number, since it is larger than the sum of its proper divisors (254247).

361275493 is a wasteful number, since it uses less digits than its factorization.

361275493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254246.

The product of its digits is 136080, while the sum is 40.

The square root of 361275493 is about 19007.2484331636. The cubic root of 361275493 is about 712.2178173844.

The spelling of 361275493 in words is "three hundred sixty-one million, two hundred seventy-five thousand, four hundred ninety-three".