61290461 has 4 divisors (see below), whose sum is σ = 62205312. Its totient is φ = 60375612.

The previous prime is 61290433. The next prime is 61290479. The reversal of 61290461 is 16409216.

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 61290461 - 2¹⁴ = 61274077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61295461) 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, 457325 + ... + 457458.

It is an arithmetic number, because the mean of its divisors is an integer number (15551328).

Almost surely, 2^61290461 is an apocalyptic number.

It is an amenable number.

61290461 is a deficient number, since it is larger than the sum of its proper divisors (914851).

61290461 is an equidigital number, since it uses as much as digits as its factorization.

61290461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914850.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 61290461 is about 7828.8224529619. The cubic root of 61290461 is about 394.2735373649.

Adding to 61290461 its reverse (16409216), we get a palindrome (77699677).

The spelling of 61290461 in words is "sixty-one million, two hundred ninety thousand, four hundred sixty-one".