361221154 has 8 divisors (see below), whose sum is σ = 619236288. Its totient is φ = 154809060.

The previous prime is 361221139. The next prime is 361221173. The reversal of 361221154 is 451122163.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12900742 + ... + 12900769.

It is an arithmetic number, because the mean of its divisors is an integer number (77404536).

Almost surely, 2^361221154 is an apocalyptic number.

361221154 is a deficient number, since it is larger than the sum of its proper divisors (258015134).

361221154 is a wasteful number, since it uses less digits than its factorization.

361221154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25801520.

The product of its digits is 1440, while the sum is 25.

The square root of 361221154 is about 19005.8189510476. The cubic root of 361221154 is about 712.1821076604.

The spelling of 361221154 in words is "three hundred sixty-one million, two hundred twenty-one thousand, one hundred fifty-four".