154542253 has 4 divisors (see below), whose sum is σ = 155217340. Its totient is φ = 153867168.

The previous prime is 154542239. The next prime is 154542259. The reversal of 154542253 is 352245451.

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 147792649 + 6749604 = 12157^2 + 2598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154542253 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 (154542259) 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, 337200 + ... + 337657.

It is an arithmetic number, because the mean of its divisors is an integer number (38804335).

Almost surely, 2^154542253 is an apocalyptic number.

It is an amenable number.

154542253 is a deficient number, since it is larger than the sum of its proper divisors (675087).

154542253 is an equidigital number, since it uses as much as digits as its factorization.

154542253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675086.

The product of its digits is 24000, while the sum is 31.

The square root of 154542253 is about 12431.5024433895. The cubic root of 154542253 is about 536.6392242353.

The spelling of 154542253 in words is "one hundred fifty-four million, five hundred forty-two thousand, two hundred fifty-three".