155212453 has 8 divisors (see below), whose sum is σ = 169668000. Its totient is φ = 140814480.

The previous prime is 155212439. The next prime is 155212459. The reversal of 155212453 is 354212551.

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

It is a cyclic number.

It is not a de Polignac number, because 155212453 - 2¹³ = 155204261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155212459) 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 in 7 ways as a sum of consecutive naturals, for example, 8650 + ... + 19627.

It is an arithmetic number, because the mean of its divisors is an integer number (21208500).

Almost surely, 2^155212453 is an apocalyptic number.

It is an amenable number.

155212453 is a deficient number, since it is larger than the sum of its proper divisors (14455547).

155212453 is a wasteful number, since it uses less digits than its factorization.

155212453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28787.

The product of its digits is 6000, while the sum is 28.

The square root of 155212453 is about 12458.4289940586. The cubic root of 155212453 is about 537.4138493978.

The spelling of 155212453 in words is "one hundred fifty-five million, two hundred twelve thousand, four hundred fifty-three".