61011151 has 2 divisors, whose sum is σ = 61011152. Its totient is φ = 61011150.

The previous prime is 61011143. The next prime is 61011161. The reversal of 61011151 is 15111016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61011151 - 2³ = 61011143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61011161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505575 + 30505576.

It is an arithmetic number, because the mean of its divisors is an integer number (30505576).

Almost surely, 2^61011151 is an apocalyptic number.

61011151 is a deficient number, since it is larger than the sum of its proper divisors (1).

61011151 is an equidigital number, since it uses as much as digits as its factorization.

61011151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 61011151 is about 7810.9635129093. The cubic root of 61011151 is about 393.6737036685.

Adding to 61011151 its reverse (15111016), we get a palindrome (76122167).

The spelling of 61011151 in words is "sixty-one million, eleven thousand, one hundred fifty-one".