77245151 has 2 divisors, whose sum is σ = 77245152. Its totient is φ = 77245150.

The previous prime is 77245141. The next prime is 77245163. The reversal of 77245151 is 15154277.

It is a weak prime.

It is an emirp because it is prime and its reverse (15154277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77245151 - 2¹⁰ = 77244127 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77245141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38622575 + 38622576.

It is an arithmetic number, because the mean of its divisors is an integer number (38622576).

Almost surely, 2^77245151 is an apocalyptic number.

77245151 is a deficient number, since it is larger than the sum of its proper divisors (1).

77245151 is an equidigital number, since it uses as much as digits as its factorization.

77245151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9800, while the sum is 32.

The square root of 77245151 is about 8788.9220613224. The cubic root of 77245151 is about 425.8831021505.

The spelling of 77245151 in words is "seventy-seven million, two hundred forty-five thousand, one hundred fifty-one".