61353469 has 4 divisors (see below), whose sum is σ = 61511580. Its totient is φ = 61195360.

The previous prime is 61353449. The next prime is 61353497. The reversal of 61353469 is 96435316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33790969 + 27562500 = 5813^2 + 5250^2 .

It is a cyclic number.

It is not a de Polignac number, because 61353469 - 2²¹ = 59256317 is a prime.

It is a super-2 number, since 2×61353469² = 7528496316667922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61353419) 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, 78472 + ... + 79249.

It is an arithmetic number, because the mean of its divisors is an integer number (15377895).

Almost surely, 2^61353469 is an apocalyptic number.

It is an amenable number.

61353469 is a deficient number, since it is larger than the sum of its proper divisors (158111).

61353469 is a wasteful number, since it uses less digits than its factorization.

61353469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158110.

The product of its digits is 58320, while the sum is 37.

The square root of 61353469 is about 7832.8455238183. The cubic root of 61353469 is about 394.4085985073.

It can be divided in two parts, 6135 and 3469, that added together give a square (9604 = 98²).

The spelling of 61353469 in words is "sixty-one million, three hundred fifty-three thousand, four hundred sixty-nine".