621012254 has 8 divisors (see below), whose sum is σ = 931624248. Its totient is φ = 310470840.

The previous prime is 621012253. The next prime is 621012263. The reversal of 621012254 is 452210126.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621012251) 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, 24224 + ... + 42764.

It is an arithmetic number, because the mean of its divisors is an integer number (116453031).

Almost surely, 2^621012254 is an apocalyptic number.

621012254 is a deficient number, since it is larger than the sum of its proper divisors (310611994).

621012254 is a wasteful number, since it uses less digits than its factorization.

621012254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35290.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 621012254 is about 24920.1174555819. The cubic root of 621012254 is about 853.1657056329.

The spelling of 621012254 in words is "six hundred twenty-one million, twelve thousand, two hundred fifty-four".