61449007 has 4 divisors (see below), whose sum is σ = 61465456. Its totient is φ = 61432560.

The previous prime is 61449001. The next prime is 61449013. The reversal of 61449007 is 70094416.

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

It is an interprime number because it is at equal distance from previous prime (61449001) and next prime (61449013).

It is a cyclic number.

It is not a de Polignac number, because 61449007 - 2⁷ = 61448879 is a prime.

It is a super-2 number, since 2×61449007² = 7551960922572098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61449007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61449001) 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, 382 + ... + 11092.

It is an arithmetic number, because the mean of its divisors is an integer number (15366364).

Almost surely, 2^61449007 is an apocalyptic number.

61449007 is a deficient number, since it is larger than the sum of its proper divisors (16449).

61449007 is a wasteful number, since it uses less digits than its factorization.

61449007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16448.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 61449007 is about 7838.9417015309. The cubic root of 61449007 is about 394.6132132182.

It can be divided in two parts, 6144 and 9007, that added together give a palindrome (15151).

The spelling of 61449007 in words is "sixty-one million, four hundred forty-nine thousand, seven".