60540749 has 2 divisors, whose sum is σ = 60540750. Its totient is φ = 60540748.

The previous prime is 60540691. The next prime is 60540751. The reversal of 60540749 is 94704506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46717225 + 13823524 = 6835^2 + 3718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60540749 is a prime.

Together with 60540751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60500749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30270374 + 30270375.

It is an arithmetic number, because the mean of its divisors is an integer number (30270375).

Almost surely, 2^60540749 is an apocalyptic number.

It is an amenable number.

60540749 is a deficient number, since it is larger than the sum of its proper divisors (1).

60540749 is an equidigital number, since it uses as much as digits as its factorization.

60540749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 60540749 is about 7780.7935970568. The cubic root of 60540749 is about 392.6593378521.

The spelling of 60540749 in words is "sixty million, five hundred forty thousand, seven hundred forty-nine".