71534501 has 2 divisors, whose sum is σ = 71534502. Its totient is φ = 71534500.

The previous prime is 71534497. The next prime is 71534549. The reversal of 71534501 is 10543517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36120100 + 35414401 = 6010^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 71534501 - 2² = 71534497 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71534591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35767250 + 35767251.

It is an arithmetic number, because the mean of its divisors is an integer number (35767251).

Almost surely, 2^71534501 is an apocalyptic number.

It is an amenable number.

71534501 is a deficient number, since it is larger than the sum of its proper divisors (1).

71534501 is an equidigital number, since it uses as much as digits as its factorization.

71534501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 71534501 is about 8457.8071034991. The cubic root of 71534501 is about 415.1182727686.

The spelling of 71534501 in words is "seventy-one million, five hundred thirty-four thousand, five hundred one".