61501030 has 16 divisors (see below), whose sum is σ = 113694480. Its totient is φ = 23935392.

The previous prime is 61501009. The next prime is 61501079. The reversal of 61501030 is 3010516.

It is a junction number, because it is equal to n+sod(n) for n = 61500995 and 61501013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82740 + ... + 83479.

It is an arithmetic number, because the mean of its divisors is an integer number (7105905).

Almost surely, 2^61501030 is an apocalyptic number.

61501030 is a deficient number, since it is larger than the sum of its proper divisors (52193450).

61501030 is a wasteful number, since it uses less digits than its factorization.

61501030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166263.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 61501030 is about 7842.2592408055. The cubic root of 61501030 is about 394.7245422351.

Adding to 61501030 its reverse (3010516), we get a palindrome (64511546).

The spelling of 61501030 in words is "sixty-one million, five hundred one thousand, thirty".