61020453 has 16 divisors (see below), whose sum is σ = 88857216. Its totient is φ = 37020480.

The previous prime is 61020433. The next prime is 61020499. The reversal of 61020453 is 35402016.

It is a happy number.

It is not a de Polignac number, because 61020453 - 2⁶ = 61020389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020413) 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, 8250 + ... + 13787.

It is an arithmetic number, because the mean of its divisors is an integer number (5553576).

Almost surely, 2^61020453 is an apocalyptic number.

It is an amenable number.

61020453 is a deficient number, since it is larger than the sum of its proper divisors (27836763).

61020453 is a wasteful number, since it uses less digits than its factorization.

61020453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22124.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 61020453 is about 7811.5589353214. The cubic root of 61020453 is about 393.6937096654.

Adding to 61020453 its reverse (35402016), we get a palindrome (96422469).

The spelling of 61020453 in words is "sixty-one million, twenty thousand, four hundred fifty-three".