61429291 has 12 divisors (see below), whose sum is σ = 77955480. Its totient is φ = 47866560.

The previous prime is 61429283. The next prime is 61429301. The reversal of 61429291 is 19292416.

It is not a de Polignac number, because 61429291 - 2³ = 61429283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61429231) 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, 56446 + ... + 57523.

It is an arithmetic number, because the mean of its divisors is an integer number (6496290).

Almost surely, 2^61429291 is an apocalyptic number.

61429291 is a deficient number, since it is larger than the sum of its proper divisors (16526189).

61429291 is a wasteful number, since it uses less digits than its factorization.

61429291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113994 (or 113987 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 61429291 is about 7837.6840329271. The cubic root of 61429291 is about 394.5710046362.

The spelling of 61429291 in words is "sixty-one million, four hundred twenty-nine thousand, two hundred ninety-one".