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131425461 = 3231619761
BaseRepresentation
bin1111101010101…
…10010010110101
3100011022002211200
413311112102311
5232121103321
621012523113
73154045416
oct765262265
9304262750
10131425461
1168205992
1238020499
13212c755b
141365180d
15b810d26
hex7d564b5

131425461 has 24 divisors (see below), whose sum is σ = 196535040. Its totient is φ = 84542400.

The previous prime is 131425457. The next prime is 131425513. The reversal of 131425461 is 164524131.

It is a happy number.

It is not a de Polignac number, because 131425461 - 22 = 131425457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131425661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172321 + ... + 173081.

It is an arithmetic number, because the mean of its divisors is an integer number (8188960).

Almost surely, 2131425461 is an apocalyptic number.

It is an amenable number.

131425461 is a deficient number, since it is larger than the sum of its proper divisors (65109579).

131425461 is a wasteful number, since it uses less digits than its factorization.

131425461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1414 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 131425461 is about 11464.0944256404. The cubic root of 131425461 is about 508.4245384202.

Adding to 131425461 its reverse (164524131), we get a palindrome (295949592).

The spelling of 131425461 in words is "one hundred thirty-one million, four hundred twenty-five thousand, four hundred sixty-one".

Divisors: 1 3 9 31 93 279 619 761 1857 2283 5571 6849 19189 23591 57567 70773 172701 212319 471059 1413177 4239531 14602829 43808487 131425461