621054031 has 16 divisors (see below), whose sum is σ = 706478080. Its totient is φ = 541870560.

The previous prime is 621054029. The next prime is 621054059. The reversal of 621054031 is 130450126.

It is a cyclic number.

It is not a de Polignac number, because 621054031 - 2¹ = 621054029 is a prime.

It is a super-2 number, since 2×621054031² = 771416218842697922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 621053993 and 621054011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621054011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591 + ... + 35248.

It is an arithmetic number, because the mean of its divisors is an integer number (44154880).

Almost surely, 2^621054031 is an apocalyptic number.

621054031 is a deficient number, since it is larger than the sum of its proper divisors (85424049).

621054031 is a wasteful number, since it uses less digits than its factorization.

621054031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35926.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 621054031 is about 24920.9556598458. The cubic root of 621054031 is about 853.1848367124.

The spelling of 621054031 in words is "six hundred twenty-one million, fifty-four thousand, thirty-one".