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1252107 = 32139123
BaseRepresentation
bin100110001101100001011
32100121120100
410301230023
5310031412
642500443
713433313
oct4615413
92317510
101252107
117857aa
12504723
1334abbc
14248443
1519aedc
hex131b0b

1252107 has 6 divisors (see below), whose sum is σ = 1808612. Its totient is φ = 834732.

The previous prime is 1252103. The next prime is 1252109. The reversal of 1252107 is 7012521.

It is not a de Polignac number, because 1252107 - 22 = 1252103 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1252107.

It is not an unprimeable number, because it can be changed into a prime (1252103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69553 + ... + 69570.

21252107 is an apocalyptic number.

1252107 is a deficient number, since it is larger than the sum of its proper divisors (556505).

1252107 is a wasteful number, since it uses less digits than its factorization.

1252107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139129 (or 139126 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1252107 is about 1118.9758710535. The cubic root of 1252107 is about 107.7822257782.

Adding to 1252107 its reverse (7012521), we get a palindrome (8264628).

The spelling of 1252107 in words is "one million, two hundred fifty-two thousand, one hundred seven".

Divisors: 1 3 9 139123 417369 1252107