1251201254 has 8 divisors (see below), whose sum is σ = 1896150648. Its totient is φ = 619151040.

The previous prime is 1251201247. The next prime is 1251201257. The reversal of 1251201254 is 4521021521.

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

It is a super-2 number, since 2×1251201254² = 3131009156022345032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251201257) 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, 3224552 + ... + 3224939.

It is an arithmetic number, because the mean of its divisors is an integer number (237018831).

Almost surely, 2^1251201254 is an apocalyptic number.

1251201254 is a deficient number, since it is larger than the sum of its proper divisors (644949394).

1251201254 is an equidigital number, since it uses as much as digits as its factorization.

1251201254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449590.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1251201254 is about 35372.3232768220. The cubic root of 1251201254 is about 1077.5623043091.

Adding to 1251201254 its reverse (4521021521), we get a palindrome (5772222775).

The spelling of 1251201254 in words is "one billion, two hundred fifty-one million, two hundred one thousand, two hundred fifty-four".