154342553 has 4 divisors (see below), whose sum is σ = 159664740. Its totient is φ = 149020368.

The previous prime is 154342547. The next prime is 154342561. The reversal of 154342553 is 355243451.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124835929 + 29506624 = 11173^2 + 5432^2 .

It is a cyclic number.

It is not a de Polignac number, because 154342553 - 2⁸ = 154342297 is a prime.

It is a super-4 number, since 4×154342553⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154341553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2661050 + ... + 2661107.

It is an arithmetic number, because the mean of its divisors is an integer number (39916185).

Almost surely, 2^154342553 is an apocalyptic number.

It is an amenable number.

154342553 is a deficient number, since it is larger than the sum of its proper divisors (5322187).

154342553 is an equidigital number, since it uses as much as digits as its factorization.

154342553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322186.

The product of its digits is 36000, while the sum is 32.

The square root of 154342553 is about 12423.4678330972. The cubic root of 154342553 is about 536.4079756186.

The spelling of 154342553 in words is "one hundred fifty-four million, three hundred forty-two thousand, five hundred fifty-three".