71402541 has 32 divisors (see below), whose sum is σ = 112754688. Its totient is φ = 39346560.

The previous prime is 71402519. The next prime is 71402543. The reversal of 71402541 is 14520417.

It is not a de Polignac number, because 71402541 - 2⁷ = 71402413 is a prime.

It is a super-2 number, since 2×71402541² = 10196645722513362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71402543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71556 + ... + 72546.

It is an arithmetic number, because the mean of its divisors is an integer number (3523584).

Almost surely, 2^71402541 is an apocalyptic number.

It is an amenable number.

71402541 is a deficient number, since it is larger than the sum of its proper divisors (41352147).

71402541 is a wasteful number, since it uses less digits than its factorization.

71402541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 71402541 is about 8450.0024260352. The cubic root of 71402541 is about 414.8628588319.

Adding to 71402541 its reverse (14520417), we get a palindrome (85922958).

The spelling of 71402541 in words is "seventy-one million, four hundred two thousand, five hundred forty-one".