155421314 has 8 divisors (see below), whose sum is σ = 233186448. Its totient is φ = 77692500.

The previous prime is 155421289. The next prime is 155421319. The reversal of 155421314 is 413124551.

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

It is not an unprimeable number, because it can be changed into a prime (155421319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8189 + ... + 19439.

It is an arithmetic number, because the mean of its divisors is an integer number (29148306).

Almost surely, 2^155421314 is an apocalyptic number.

155421314 is a deficient number, since it is larger than the sum of its proper divisors (77765134).

155421314 is a wasteful number, since it uses less digits than its factorization.

155421314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18160.

The product of its digits is 2400, while the sum is 26.

The square root of 155421314 is about 12466.8084929544. The cubic root of 155421314 is about 537.6547975997.

Adding to 155421314 its reverse (413124551), we get a palindrome (568545865).

The spelling of 155421314 in words is "one hundred fifty-five million, four hundred twenty-one thousand, three hundred fourteen".