61263210 has 16 divisors (see below), whose sum is σ = 147031776. Its totient is φ = 16336848.

The previous prime is 61263203. The next prime is 61263211. The reversal of 61263210 is 1236216.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61263211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021024 + ... + 1021083.

It is an arithmetic number, because the mean of its divisors is an integer number (9189486).

Almost surely, 2^61263210 is an apocalyptic number.

61263210 is an abundant number, since it is smaller than the sum of its proper divisors (85768566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61263210 is a wasteful number, since it uses less digits than its factorization.

61263210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042117.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61263210 is about 7827.0818316918. The cubic root of 61263210 is about 394.2150946601.

Adding to 61263210 its reverse (1236216), we get a palindrome (62499426).

The spelling of 61263210 in words is "sixty-one million, two hundred sixty-three thousand, two hundred ten".