610542421 has 4 divisors (see below), whose sum is σ = 610614592. Its totient is φ = 610470252.

The previous prime is 610542341. The next prime is 610542433. The reversal of 610542421 is 124245016.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 610542421 - 2⁷ = 610542293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610542451) 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, 21405 + ... + 40978.

It is an arithmetic number, because the mean of its divisors is an integer number (152653648).

Almost surely, 2^610542421 is an apocalyptic number.

It is an amenable number.

610542421 is a deficient number, since it is larger than the sum of its proper divisors (72171).

610542421 is an equidigital number, since it uses as much as digits as its factorization.

610542421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72170.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 610542421 is about 24709.1566225964. The cubic root of 610542421 is about 848.3439131959.

Adding to 610542421 its reverse (124245016), we get a palindrome (734787437).

The spelling of 610542421 in words is "six hundred ten million, five hundred forty-two thousand, four hundred twenty-one".