155453216 has 24 divisors (see below), whose sum is σ = 306424944. Its totient is φ = 77631040.

The previous prime is 155453209. The next prime is 155453261. The reversal of 155453216 is 612354551.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 28571 + ... + 33573.

It is an arithmetic number, because the mean of its divisors is an integer number (12767706).

Almost surely, 2^155453216 is an apocalyptic number.

155453216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155453216 is a deficient number, since it is larger than the sum of its proper divisors (150971728).

155453216 is an equidigital number, since it uses as much as digits as its factorization.

155453216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984 (or 5976 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 155453216 is about 12468.0879047270. The cubic root of 155453216 is about 537.6915816792.

The spelling of 155453216 in words is "one hundred fifty-five million, four hundred fifty-three thousand, two hundred sixteen".