71420150 has 24 divisors (see below), whose sum is σ = 135352944. Its totient is φ = 28028000.

The previous prime is 71420143. The next prime is 71420159. The reversal of 71420150 is 5102417.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71420159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10826 + ... + 16125.

It is an arithmetic number, because the mean of its divisors is an integer number (5639706).

Almost surely, 2^71420150 is an apocalyptic number.

71420150 is a deficient number, since it is larger than the sum of its proper divisors (63932794).

71420150 is a wasteful number, since it uses less digits than its factorization.

71420150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016 (or 27011 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 71420150 is about 8451.0443141661. The cubic root of 71420150 is about 414.8969599509.

Adding to 71420150 its reverse (5102417), we get a palindrome (76522567).

The spelling of 71420150 in words is "seventy-one million, four hundred twenty thousand, one hundred fifty".