61424133 has 16 divisors (see below), whose sum is σ = 84667200. Its totient is φ = 39588480.

The previous prime is 61424123. The next prime is 61424137. The reversal of 61424133 is 33142416.

It is not a de Polignac number, because 61424133 - 2²² = 57229829 is a prime.

It is a super-2 number, since 2×61424133² = 7545848229603378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61424137) 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, 7953 + ... + 13641.

It is an arithmetic number, because the mean of its divisors is an integer number (5291700).

Almost surely, 2^61424133 is an apocalyptic number.

It is an amenable number.

61424133 is a deficient number, since it is larger than the sum of its proper divisors (23243067).

61424133 is a wasteful number, since it uses less digits than its factorization.

61424133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812.

The product of its digits is 1728, while the sum is 24.

The square root of 61424133 is about 7837.3549747348. The cubic root of 61424133 is about 394.5599607505.

Adding to 61424133 its reverse (33142416), we get a palindrome (94566549).

It can be divided in two parts, 6142413 and 3, that added together give a palindrome (6142416).

The spelling of 61424133 in words is "sixty-one million, four hundred twenty-four thousand, one hundred thirty-three".