155516453 has 8 divisors (see below), whose sum is σ = 157639680. Its totient is φ = 153407520.

The previous prime is 155516411. The next prime is 155516461. The reversal of 155516453 is 354615551.

155516453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155516453 - 2¹⁶ = 155450917 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 (155519453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19313 + ... + 26153.

It is an arithmetic number, because the mean of its divisors is an integer number (19704960).

Almost surely, 2^155516453 is an apocalyptic number.

It is an amenable number.

155516453 is a deficient number, since it is larger than the sum of its proper divisors (2123227).

155516453 is a wasteful number, since it uses less digits than its factorization.

155516453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147.

The product of its digits is 45000, while the sum is 35.

The square root of 155516453 is about 12470.6236010875. The cubic root of 155516453 is about 537.7644811960.

The spelling of 155516453 in words is "one hundred fifty-five million, five hundred sixteen thousand, four hundred fifty-three".