225071142531 has 16 divisors (see below), whose sum is σ = 307112615040. Its totient is φ = 146539431360.

The previous prime is 225071142523. The next prime is 225071142551. The reversal of 225071142531 is 135241170522.

It is a happy number.

It is not a de Polignac number, because 225071142531 - 2³ = 225071142523 is a prime.

It is a super-2 number, since 2×225071142531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225071142492 and 225071142501.

It is not an unprimeable number, because it can be changed into a prime (225071142551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 954111 + ... + 1166391.

It is an arithmetic number, because the mean of its divisors is an integer number (19194538440).

Almost surely, 2^225071142531 is an apocalyptic number.

225071142531 is a deficient number, since it is larger than the sum of its proper divisors (82041472509).

225071142531 is a wasteful number, since it uses less digits than its factorization.

225071142531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220546.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 225071142531 in words is "two hundred twenty-five billion, seventy-one million, one hundred forty-two thousand, five hundred thirty-one".