1253540154 has 8 divisors (see below), whose sum is σ = 2507080320. Its totient is φ = 417846716.

The previous prime is 1253540111. The next prime is 1253540161. The reversal of 1253540154 is 4510453521.

It is a sphenic number, since it is the product of 3 distinct primes.

1253540154 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104461674 + ... + 104461685.

It is an arithmetic number, because the mean of its divisors is an integer number (313385040).

Almost surely, 2^1253540154 is an apocalyptic number.

1253540154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253540154 is a wasteful number, since it uses less digits than its factorization.

1253540154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208923364.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1253540154 is about 35405.3689996306. The cubic root of 1253540154 is about 1078.2333239044.

Adding to 1253540154 its reverse (4510453521), we get a palindrome (5763993675).

The spelling of 1253540154 in words is "one billion, two hundred fifty-three million, five hundred forty thousand, one hundred fifty-four".