155250453 has 4 divisors (see below), whose sum is σ = 207000608. Its totient is φ = 103500300.

The previous prime is 155250451. The next prime is 155250461. The reversal of 155250453 is 354052551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 155250453 - 2¹ = 155250451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155250453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155250451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25875073 + ... + 25875078.

It is an arithmetic number, because the mean of its divisors is an integer number (51750152).

Almost surely, 2^155250453 is an apocalyptic number.

It is an amenable number.

155250453 is a deficient number, since it is larger than the sum of its proper divisors (51750155).

155250453 is an equidigital number, since it uses as much as digits as its factorization.

155250453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51750154.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 155250453 is about 12459.9539726277. The cubic root of 155250453 is about 537.4577033961.

The spelling of 155250453 in words is "one hundred fifty-five million, two hundred fifty thousand, four hundred fifty-three".