155214416 has 20 divisors (see below), whose sum is σ = 343689312. Its totient is φ = 66520416.

The previous prime is 155214383. The next prime is 155214443. The reversal of 155214416 is 614412551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692810 + ... + 693033.

Almost surely, 2^155214416 is an apocalyptic number.

155214416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155214416 is an abundant number, since it is smaller than the sum of its proper divisors (188474896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155214416 is a wasteful number, since it uses less digits than its factorization.

155214416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385858 (or 1385852 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 155214416 is about 12458.5077758133. The cubic root of 155214416 is about 537.4161149784.

Adding to 155214416 its reverse (614412551), we get a palindrome (769626967).

The spelling of 155214416 in words is "one hundred fifty-five million, two hundred fourteen thousand, four hundred sixteen".