29142661 has 2 divisors, whose sum is σ = 29142662. Its totient is φ = 29142660.

The previous prime is 29142613. The next prime is 29142667. The reversal of 29142661 is 16624192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 2825761 = 5130^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 29142661 - 2¹⁵ = 29109893 is a prime.

It is a super-3 number, since 3×29142661³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1807942 and since 29142661 and 1807942 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29142667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14571330 + 14571331.

It is an arithmetic number, because the mean of its divisors is an integer number (14571331).

Almost surely, 2^29142661 is an apocalyptic number.

It is an amenable number.

29142661 is a deficient number, since it is larger than the sum of its proper divisors (1).

29142661 is an equidigital number, since it uses as much as digits as its factorization.

29142661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 29142661 is about 5398.3942983076. The cubic root of 29142661 is about 307.7346515715.

The spelling of 29142661 in words is "twenty-nine million, one hundred forty-two thousand, six hundred sixty-one".