471157561 has 16 divisors (see below), whose sum is σ = 557421568. Its totient is φ = 389707200.

The previous prime is 471157559. The next prime is 471157571. The reversal of 471157561 is 165751174.

It is a happy number.

It is not a de Polignac number, because 471157561 - 2¹ = 471157559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 471157561.

It is not an unprimeable number, because it can be changed into a prime (471157571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78031 + ... + 83851.

It is an arithmetic number, because the mean of its divisors is an integer number (34838848).

Almost surely, 2^471157561 is an apocalyptic number.

It is an amenable number.

471157561 is a deficient number, since it is larger than the sum of its proper divisors (86264007).

471157561 is a wasteful number, since it uses less digits than its factorization.

471157561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232.

The product of its digits is 29400, while the sum is 37.

The square root of 471157561 is about 21706.1641245062. The cubic root of 471157561 is about 778.1357852755.

The spelling of 471157561 in words is "four hundred seventy-one million, one hundred fifty-seven thousand, five hundred sixty-one".