610158421 has 16 divisors (see below), whose sum is σ = 647232768. Its totient is φ = 574041600.

The previous prime is 610158413. The next prime is 610158491. The reversal of 610158421 is 124851016.

610158421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 610158421 - 2³ = 610158413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 610158421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610158401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403056 + ... + 404566.

It is an arithmetic number, because the mean of its divisors is an integer number (40452048).

Almost surely, 2^610158421 is an apocalyptic number.

It is an amenable number.

610158421 is a deficient number, since it is larger than the sum of its proper divisors (37074347).

610158421 is a wasteful number, since it uses less digits than its factorization.

610158421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 610158421 is about 24701.3850016553. The cubic root of 610158421 is about 848.1660208979.

The spelling of 610158421 in words is "six hundred ten million, one hundred fifty-eight thousand, four hundred twenty-one".