254723654 has 4 divisors (see below), whose sum is σ = 382085484. Its totient is φ = 127361826.

The previous prime is 254723641. The next prime is 254723659. The reversal of 254723654 is 456327452.

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

It is a super-2 number, since 2×254723654² = 129768279814223432, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254723659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63680912 + ... + 63680915.

It is an arithmetic number, because the mean of its divisors is an integer number (95521371).

Almost surely, 2^254723654 is an apocalyptic number.

254723654 is a deficient number, since it is larger than the sum of its proper divisors (127361830).

254723654 is a wasteful number, since it uses less digits than its factorization.

254723654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127361829.

The product of its digits is 201600, while the sum is 38.

The square root of 254723654 is about 15960.0643482412. The cubic root of 254723654 is about 633.9034158449.

The spelling of 254723654 in words is "two hundred fifty-four million, seven hundred twenty-three thousand, six hundred fifty-four".