71423153 has 2 divisors, whose sum is σ = 71423154. Its totient is φ = 71423152.

The previous prime is 71423117. The next prime is 71423161. The reversal of 71423153 is 35132417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48832144 + 22591009 = 6988^2 + 4753^2 .

It is a cyclic number.

It is not a de Polignac number, because 71423153 - 2¹⁸ = 71161009 is a prime.

It is a super-2 number, since 2×71423153² = 10202533568922818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71423753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35711576 + 35711577.

It is an arithmetic number, because the mean of its divisors is an integer number (35711577).

Almost surely, 2^71423153 is an apocalyptic number.

It is an amenable number.

71423153 is a deficient number, since it is larger than the sum of its proper divisors (1).

71423153 is an equidigital number, since it uses as much as digits as its factorization.

71423153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 71423153 is about 8451.2219826484. The cubic root of 71423153 is about 414.9027749210.

The spelling of 71423153 in words is "seventy-one million, four hundred twenty-three thousand, one hundred fifty-three".