71401455 has 12 divisors (see below), whose sum is σ = 123762600. Its totient is φ = 38080752.

The previous prime is 71401439. The next prime is 71401471. The reversal of 71401455 is 55410417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71401439) and next prime (71401471).

It is not a de Polignac number, because 71401455 - 2⁴ = 71401439 is a prime.

It is a super-2 number, since 2×71401455² = 10196335552234050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793305 + ... + 793394.

It is an arithmetic number, because the mean of its divisors is an integer number (10313550).

Almost surely, 2^71401455 is an apocalyptic number.

71401455 is a deficient number, since it is larger than the sum of its proper divisors (52361145).

71401455 is a wasteful number, since it uses less digits than its factorization.

71401455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586710 (or 1586707 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 71401455 is about 8449.9381654542. The cubic root of 71401455 is about 414.8607555298.

The spelling of 71401455 in words is "seventy-one million, four hundred one thousand, four hundred fifty-five".