61480451 has 4 divisors (see below), whose sum is σ = 61820304. Its totient is φ = 61140600.

The previous prime is 61480439. The next prime is 61480457. The reversal of 61480451 is 15408416.

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

It is a cyclic number.

It is not a de Polignac number, because 61480451 - 2⁶ = 61480387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61480457) 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, 169655 + ... + 170016.

It is an arithmetic number, because the mean of its divisors is an integer number (15455076).

Almost surely, 2^61480451 is an apocalyptic number.

61480451 is a deficient number, since it is larger than the sum of its proper divisors (339853).

61480451 is a wasteful number, since it uses less digits than its factorization.

61480451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339852.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 61480451 is about 7840.9470728988. The cubic root of 61480451 is about 394.6805107636.

Adding to 61480451 its reverse (15408416), we get a palindrome (76888867).

The spelling of 61480451 in words is "sixty-one million, four hundred eighty thousand, four hundred fifty-one".