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131133075 = 3521748441
BaseRepresentation
bin1111101000011…
…10111010010011
3100010202020202120
413310032322103
5232032224300
621002345323
73151420113
oct764167223
9303666676
10131133075
1168026247
1237abb243
1321224448
14135b7043
15b7a43a0
hex7d0ee93

131133075 has 12 divisors (see below), whose sum is σ = 216806808. Its totient is φ = 69937600.

The previous prime is 131133061. The next prime is 131133083. The reversal of 131133075 is 570331131.

It is not a de Polignac number, because 131133075 - 210 = 131132051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874146 + ... + 874295.

It is an arithmetic number, because the mean of its divisors is an integer number (18067234).

Almost surely, 2131133075 is an apocalyptic number.

131133075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131133075 is a deficient number, since it is larger than the sum of its proper divisors (85673733).

131133075 is a wasteful number, since it uses less digits than its factorization.

131133075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748454 (or 1748449 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 131133075 is about 11451.3350750033. The cubic root of 131133075 is about 508.0472229129.

The spelling of 131133075 in words is "one hundred thirty-one million, one hundred thirty-three thousand, seventy-five".

Divisors: 1 3 5 15 25 75 1748441 5245323 8742205 26226615 43711025 131133075