361253642 has 4 divisors (see below), whose sum is σ = 541880466. Its totient is φ = 180626820.

The previous prime is 361253623. The next prime is 361253647. The reversal of 361253642 is 246352163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246352163 = 10631 ⋅23173.

It can be written as a sum of positive squares in only one way, i.e., 314317441 + 46936201 = 17729^2 + 6851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 361253599 and 361253608.

It is not an unprimeable number, because it can be changed into a prime (361253647) 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 as a sum of consecutive naturals, namely, 90313409 + ... + 90313412.

Almost surely, 2^361253642 is an apocalyptic number.

361253642 is a deficient number, since it is larger than the sum of its proper divisors (180626824).

361253642 is a wasteful number, since it uses less digits than its factorization.

361253642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180626823.

The product of its digits is 25920, while the sum is 32.

The square root of 361253642 is about 19006.6736174429. The cubic root of 361253642 is about 712.2034580884.

The spelling of 361253642 in words is "three hundred sixty-one million, two hundred fifty-three thousand, six hundred forty-two".