61458231 has 16 divisors (see below), whose sum is σ = 85697280. Its totient is φ = 39103680.

The previous prime is 61458203. The next prime is 61458269. The reversal of 61458231 is 13285416.

It is not a de Polignac number, because 61458231 - 2⁶ = 61458167 is a prime.

It is a super-2 number, since 2×61458231² = 7554228315298722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61458931) 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, 47035 + ... + 48323.

It is an arithmetic number, because the mean of its divisors is an integer number (5356080).

Almost surely, 2^61458231 is an apocalyptic number.

61458231 is a deficient number, since it is larger than the sum of its proper divisors (24239049).

61458231 is a wasteful number, since it uses less digits than its factorization.

61458231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its digits is 5760, while the sum is 30.

The square root of 61458231 is about 7839.5300241787. The cubic root of 61458231 is about 394.6329571237.

The spelling of 61458231 in words is "sixty-one million, four hundred fifty-eight thousand, two hundred thirty-one".