61513029 has 12 divisors (see below), whose sum is σ = 88991136. Its totient is φ = 40944552.

The previous prime is 61513027. The next prime is 61513033. The reversal of 61513029 is 92031516.

It is not a de Polignac number, because 61513029 - 2¹ = 61513027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61512993 and 61513011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61513027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (7415928).

Almost surely, 2^61513029 is an apocalyptic number.

It is an amenable number.

61513029 is a deficient number, since it is larger than the sum of its proper divisors (27478107).

61513029 is a wasteful number, since it uses less digits than its factorization.

61513029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10696 (or 10693 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 61513029 is about 7843.0242253865. The cubic root of 61513029 is about 394.7502111374.

It can be divided in two parts, 6151 and 3029, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 61513029 in words is "sixty-one million, five hundred thirteen thousand, twenty-nine".