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1057531 is a prime number
BaseRepresentation
bin100000010001011111011
31222201122211
410002023323
5232320111
634355551
711663116
oct4021373
91881584
101057531
116625a2
1242bbb7
132b0477
141d757d
1515d521
hex1022fb

1057531 has 2 divisors, whose sum is σ = 1057532. Its totient is φ = 1057530.

The previous prime is 1057493. The next prime is 1057541. The reversal of 1057531 is 1357501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1057531 - 29 = 1057019 is a prime.

It is a super-2 number, since 2×10575312 = 2236743631922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1057541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528765 + 528766.

It is an arithmetic number, because the mean of its divisors is an integer number (528766).

21057531 is an apocalyptic number.

1057531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057531 is an equidigital number, since it uses as much as digits as its factorization.

1057531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 1057531 is about 1028.3632626655. The cubic root of 1057531 is about 101.8820564196.

The spelling of 1057531 in words is "one million, fifty-seven thousand, five hundred thirty-one".